Congratulations on your pregnancy! Whether you just found out or you’re already weeks along, this complete week-by-week guide will walk you through every stage of your 40-week journey. Understanding what’s happening each week helps you connect with your growing baby and know what to expect next.

Understanding Pregnancy Trimesters

Pregnancy is divided into three trimesters, each lasting about 13 weeks:

• First Trimester: Weeks 1-13 (Months 1-3)
• Second Trimester: Weeks 14-27 (Months 4-6)
• Third Trimester: Weeks 28-40 (Months 7-9)

Each trimester brings unique changes, challenges, and milestones for both you and your baby.

---

First Trimester: Weeks 1-13

The first trimester is a time of rapid development and major changes. Your body is working overtime to create the perfect environment for your baby.

Month 1: Weeks 1-4

Week 1-2: Conception and Implantation

Your Baby: Pregnancy weeks are counted from the first day of your last menstrual period, so conception typically happens around week 2. The fertilized egg travels down the fallopian tube and implants in your uterus by the end of week 3.

Your Body: You might not know you’re pregnant yet. Some women experience light spotting during implantation.

Symptoms:

• Mild cramping
• Light spotting (implantation bleeding)
• No obvious pregnancy symptoms yet

Tips:

• Start taking prenatal vitamins with folic acid if you’re trying to conceive
• Avoid alcohol and smoking
• Maintain a healthy diet

Week 3: You’re Officially Pregnant!

Your Baby: The fertilized egg becomes a blastocyst and implants into your uterine lining. Cells are rapidly dividing.

Size: Smaller than a grain of salt

Your Body: Implantation occurs, and your body starts producing the pregnancy hormone hCG.

Symptoms:

• You likely won’t notice symptoms yet
• Possible light cramping
• Slight temperature increase

Week 4: Positive Pregnancy Test

Your Baby: The blastocyst develops into an embryo with three distinct layers that will form all organs and tissues. The amniotic sac and placenta begin forming.

Size: Poppy seed (2mm)

Your Body: Your missed period prompts you to take a pregnancy test. hCG levels are now detectable.

Symptoms:

• Missed period
• Tender breasts
• Mild cramping
• Bloating
• Mood swings
• Fatigue

Milestones:

• Take a home pregnancy test
• Schedule your first prenatal appointment
• Continue prenatal vitamins

---

Month 2: Weeks 5-8

Week 5: Heartbeat Begins

Your Baby: The neural tube (future brain and spinal cord) forms. The heart begins to beat, though it’s too early to hear on ultrasound yet.

Size: Sesame seed (3mm)

Your Body: Rising hormone levels cause noticeable pregnancy symptoms.

Symptoms:

• Morning sickness begins (can occur any time of day)
• Extreme fatigue
• Frequent urination
• Food aversions or cravings
• Heightened sense of smell

Tips:

• Eat small, frequent meals to manage nausea
• Stay hydrated
• Rest when needed

Week 6: Facial Features Form

Your Baby: Tiny buds appear where arms and legs will grow. Facial features begin forming, including dark spots where eyes and nostrils will be. The heart beats 100-160 times per minute.

Size: Lentil bean (4-5mm)

Your Body: Your uterus is growing, about the size of a plum.

Symptoms:

• Nausea intensifies
• Mood swings
• Breast tenderness increases
• Bloating and gas
• Slight weight gain or loss

Medical:

• First prenatal visit typically scheduled
• Blood tests and physical exam
• Dating ultrasound may be performed

Week 7: Baby Doubles in Size

Your Baby: Your baby doubles in size this week! The brain develops rapidly. Arm and leg buds grow. Tiny fingers and toes begin forming.

Size: Blueberry (10mm)

Your Body: Your uterus has doubled in size since conception.

Symptoms:

• Peak morning sickness
• Excessive saliva
• Frequent urination increases
• Constipation
• Heartburn may begin

Tips:

• Ginger tea or candies for nausea
• Vitamin B6 may help with morning sickness
• Wear a supportive bra

Week 8: Baby Starts Moving

Your Baby: All major organs have begun forming. Your baby starts making spontaneous movements, though you can’t feel them yet. Fingers and toes become more distinct. The tail disappears.

Size: Raspberry (16mm)

Your Body: Your uterus is now the size of a large orange.

Symptoms:

• Continued nausea and fatigue
• Clothes may feel tighter around the waist
• Veins become more visible
• Skin changes (acne or glow)

Milestones:

• Your baby is no longer an embryo but officially a fetus
• Major organs are in place

---

Month 3: Weeks 9-13

Week 9: Baby Looks More Human

Your Baby: Your baby’s face looks more human with eyes fully formed (though still closed). External ears appear. Muscles develop, allowing more movement.

Size: Cherry (22mm)

Your Body: Your uterus continues expanding.

Symptoms:

• Ongoing first trimester symptoms
• Possible weight gain of 1-4 pounds
• Emotional ups and downs
• Increased vaginal discharge

Tips:

• Continue eating small, frequent meals
• Stay active with gentle exercise
• Practice stress-reduction techniques

Week 10: Vital Organs Function

Your Baby: All vital organs are formed and functioning! Tiny nails appear on fingers and toes. The head is still large compared to the body. Baby can swallow and kick.

Size: Strawberry (31mm)

Your Body: Your waistline starts expanding.

Symptoms:

• Morning sickness may start improving
• Round ligament pain (sharp pains in abdomen)
• Visible veins on breasts and abdomen
• Mood swings continue

Medical:

• Some women may hear the heartbeat with a Doppler at prenatal visits

Week 11: Baby’s Growth Accelerates

Your Baby: Your baby’s growth accelerates! Hands can open and close. Tooth buds appear. The diaphragm develops, preparing for breathing.

Size: Fig (41mm)

Your Body: Your uterus fills your pelvis and may be felt above your pubic bone.

Symptoms:

• Energy levels may improve slightly
• Nausea may decrease for some women
• Increased appetite
• Thicker, shinier hair

Tips:

• Start documenting with pregnancy photos
• Begin researching childbirth classes

Week 12: Reflexes Develop

Your Baby: Your baby can curl toes, make sucking motions, and respond to touch (though you can’t feel it). The intestines move from the umbilical cord into the abdomen. Vocal cords form.

Size: Plum (54mm)

Your Body: Your uterus rises above your pelvis.

Symptoms:

• Nausea often improves
• Dizzy spells from blood pressure changes
• Increased discharge
• Less frequent urination as uterus rises

Milestones:

• Miscarriage risk drops significantly
• Many women announce pregnancy after this week

Week 13: End of First Trimester

Your Baby: Your baby’s head is now one-third of total body size. Fingerprints form. Baby can suck their thumb. Vocal cords develop.

Size: Peapod (65-78mm)

Your Body: Your uterus has grown significantly and your abdomen may start showing.

Symptoms:

• Morning sickness typically improves
• Energy increases
• Visible baby bump for some women
• Round ligament pain

Tips:

• Congratulate yourself on completing the first trimester!
• Consider maternity clothes
• Schedule second trimester screenings

---

Second Trimester: Weeks 14-27

The second trimester is often called the “honeymoon period” of pregnancy. Energy returns, morning sickness fades, and you’re not too uncomfortable yet.

Month 4: Weeks 14-17

Week 14: Energy Returns

Your Baby: Your baby can make facial expressions, including squinting and frowning. The thyroid gland starts functioning. Baby can urinate.

Size: Lemon (87mm)

Your Body: The top of your uterus is between your pubic bone and belly button.

Symptoms:

• Increased energy
• Reduced nausea
• Growing appetite
• Constipation may continue
• Round ligament pain

Tips:

• Start gentle pregnancy exercises
• Invest in comfortable maternity wear
• Stay hydrated to prevent constipation

Week 15: Baby Senses Light

Your Baby: Although eyes are still closed, your baby can sense light. Legs grow longer than arms. Baby’s skin is thin and translucent.

Size: Apple (10cm)

Your Body: Your pregnancy may become visible to others.

Symptoms:

• Nose congestion and nosebleeds
• Bleeding gums
• Increased appetite
• Possible weight gain of 5+ pounds

Medical:

• Quad screen or other second trimester genetic testing may be offered
• Amniocentesis available if needed

Week 16: Strong Bones Form

Your Baby: Your baby’s bones become stronger. The nervous system functions better. Baby can hear sounds from outside the womb. Facial muscles work, creating expressions.

Size: Avocado (11.6cm)

Your Body: Your uterus is halfway between your pubic bone and belly button.

Symptoms:

• Glowing skin from increased blood flow
• Some women feel first flutters (especially second-time moms)
• Back pain may begin
• Forgetfulness (pregnancy brain)

Tips:

• Talk or sing to your baby
• Practice good posture to prevent back pain
• Consider pregnancy massage

Week 17: Baby’s Fingerprints Form

Your Baby: Unique fingerprints and toe prints form. Fat begins accumulating under the skin. The skeleton changes from soft cartilage to bone. Baby practices breathing by inhaling and exhaling amniotic fluid.

Size: Turnip (12cm)

Your Body: Your uterus continues growing upward.

Symptoms:

• Increased appetite
• Possible darkening of nipples
• Linea nigra (dark line down belly) may appear
• Mild swelling in hands and feet

Milestones:

• Some first-time moms start feeling baby movements

---

Month 5: Weeks 18-22

Week 18: Baby Hears Your Voice

Your Baby: Your baby can hear your voice, heartbeat, and stomach growling! The ears stand out from the head. Eyes face forward. A protective coating called vernix covers the skin.

Size: Bell pepper (14cm)

Your Body: Your uterus is at belly button level.

Symptoms:

• Definite baby movements (quickening)
• Increased vaginal discharge
• Appetite increases
• Aches and pains from growing uterus

Tips:

• Start talking to your baby regularly
• Play music
• Begin tracking baby’s movement patterns

Week 19: Baby Develops Senses

Your Baby: The five senses develop in specialized brain areas. A protective coating (vernix caseosa) covers the skin. Girls’ uteruses and vaginal canals form.

Size: Heirloom tomato (15cm)

Your Body: Your baby bump is noticeable.

Symptoms:

• Dizziness from changing positions
• Abdominal achiness
• Leg cramps
• Backache

Medical:

• Anatomy scan (20-week ultrasound) scheduled soon
• May learn baby’s gender if desired

Week 20: Halfway There!

Your Baby: Your baby is swallowing more and producing meconium (first bowel movement). Lanugo (fine hair) covers the body. Baby is more active, with regular sleep-wake cycles.

Size: Banana (16.5cm from crown to rump)

Your Body: Your uterus reaches your belly button.

Symptoms:

• Shortness of breath
• Heartburn
• Braxton Hicks contractions may begin
• Stretch marks may appear

Milestones:

• Anatomy ultrasound (detailed look at baby’s development)
• You’re halfway through pregnancy!
• Fundal height measurements begin

Tips:

• Take belly photos to document growth
• Start planning your nursery
• Consider prenatal classes

Week 21: Baby Can Taste

Your Baby: Your baby’s taste buds develop and can taste what you eat through the amniotic fluid. Bone marrow starts producing blood cells. Movements become stronger.

Size: Carrot (26.7cm total length)

Your Body: Your belly continues expanding rapidly.

Symptoms:

• Increased appetite
• Varicose veins may appear
• Spider veins
• Increased libido for some women

Tips:

• Eat a variety of flavors to expose baby to different tastes
• Elevate legs to reduce swelling
• Stay active with prenatal yoga or swimming

Week 22: Baby Looks Like a Newborn

Your Baby: Your baby looks like a miniature newborn with developed eyelids, eyebrows, and fingernails. The pancreas develops. Baby’s lips become more distinct.

Size: Papaya (27.8cm)

Your Body: Your uterus is about 2cm above your belly button.

Symptoms:

• Linea nigra darkens
• Stretch marks
• Swollen ankles and feet
• Increased hair growth

Tips:

• Moisturize skin to ease itching
• Wear comfortable, supportive shoes
• Stay cool and hydrated

---

Month 6: Weeks 23-27

Week 23: Baby’s Hearing Improves

Your Baby: Your baby can hear your voice more clearly. Lungs develop but aren’t ready to function outside the womb yet. Skin is still wrinkled and translucent.

Size: Grapefruit (28.9cm)

Your Body: Your center of gravity shifts with your growing belly.

Symptoms:

• Backache intensifies
• Clumsiness from shifted balance
• Swelling increases
• Braxton Hicks contractions

Tips:

• Use a pregnancy support belt for back pain
• Be cautious with balance
• Sleep on your left side for optimal blood flow

Week 24: Baby’s Face Fully Forms

Your Baby: Baby’s face is fully formed with eyebrows, eyelashes, and hair. The lungs develop branches of the respiratory tree. Baby responds to sound with movement.

Size: Ear of corn (30cm)

Your Body: Your uterus is about the size of a soccer ball.

Symptoms:

• Glucose tolerance test scheduled
• Possible carpal tunnel syndrome
• Tingling hands and feet
• Vision changes

Medical:

• Glucose screening test for gestational diabetes (usually weeks 24-28)

Week 25: Baby Responds to Touch

Your Baby: Your baby responds to touch and may move away if you poke your belly. The nostrils open and baby practices breathing movements. Spine develops.

Size: Rutabaga (34.6cm)

Your Body: Your uterus is the size of a soccer ball.

Symptoms:

• Hemorrhoids may develop
• Increased appetite
• Heartburn worsens
• Difficulty sleeping

Tips:

• Use hemorrhoid cream if needed
• Eat smaller meals to reduce heartburn
• Invest in a pregnancy pillow

Week 26: Baby’s Eyes Open

Your Baby: Your baby’s eyes open for the first time! Baby can respond to light. The lungs produce surfactant, preparing for breathing. Brain develops rapidly.

Size: Scallion (35.6cm)

Your Body: You may feel baby’s hiccups.

Symptoms:

• Baby’s movements visible through your belly
• Increased braxton hicks
• Pelvic pressure
• Headaches

Tips:

• Monitor baby’s movement patterns
• Stay hydrated
• Practice relaxation techniques

Week 27: End of Second Trimester

Your Baby: Baby’s brain develops billions of neurons. Sleep-wake cycles are more regular. Baby can suck their thumb. Lungs, liver, and immune system continue maturing.

Size: Cauliflower (36.6cm)

Your Body: Your uterus is about 7cm above your belly button.

Symptoms:

• Restless leg syndrome
• Leg cramps at night
• Heartburn increases
• Braxton Hicks more frequent

Milestones:

• Entering the third trimester
• Baby’s survival rate if born prematurely increases significantly

Tips:

• Congratulate yourself on completing two trimesters!
• Start preparing for baby’s arrival
• Tour hospital or birthing center

---

Third Trimester: Weeks 28-40

The home stretch! Your baby is growing rapidly, and your body is preparing for labor and delivery.

Month 7: Weeks 28-31

Week 28: Baby Begins Dreaming

Your Baby: Brain waves show baby can dream! Baby’s eyes can move and detect light. Billions of neurons develop. Baby adds fat, smoothing out wrinkled skin.

Size: Eggplant (37.6cm)

Your Body: Your uterus extends well above your belly button.

Symptoms:

• Shortness of breath
• Trouble sleeping
• Frequent urination returns
• Sciatic nerve pain

Medical:

• If Rh-negative, you’ll receive RhoGAM injection
• Prenatal visits increase to every 2 weeks

Tips:

• Sleep with extra pillows for support
• Practice prenatal yoga
• Start planning maternity leave

Week 29: Baby Gets Stronger

Your Baby: Muscles and lungs continue maturing. Baby’s kicks become stronger. Head grows to accommodate brain development. Baby can control body temperature better.

Size: Butternut squash (38.6cm)

Your Body: Growing uterus puts pressure on your ribs.

Symptoms:

• Rib pain
• Hemorrhoids worsen
• Varicose veins
• Increased discharge

Tips:

• Stretch regularly
• Use warm compresses for rib discomfort
• Keep feet elevated when possible

Week 30: Baby’s Vision Develops

Your Baby: Baby’s vision develops—can distinguish between light and dark. Bone marrow produces red blood cells. Lanugo hair begins shedding. Baby weighs about 3 pounds.

Size: Cucumber (39.9cm)

Your Body: You’ve likely gained 18-25 pounds.

Symptoms:

• Increased fatigue
• Mood swings return
• Heartburn intensifies
• Shortness of breath

Tips:

• Start pelvic floor exercises (Kegels)
• Prepare freezer meals
• Finalize baby registry

Week 31: Baby Gains Weight Rapidly

Your Baby: Your baby gains about half a pound per week from now on. Major organs are fully developed except lungs. Baby can turn head from side to side.

Size: Coconut (41.1cm)

Your Body: Amniotic fluid is at maximum volume.

Symptoms:

• Pelvic pressure increases
• Breast leakage (colostrum)
• Braxton Hicks more noticeable
• Forgetfulness

Milestones:

• Baby’s movements should be regular and predictable
• Start kick counts if recommended

---

Month 8: Weeks 32-35

Week 32: Baby Practices Breathing

Your Baby: Baby practices breathing by inhaling amniotic fluid. All five senses work. Fingernails and toenails are fully grown. Baby likely settles into head-down position.

Size: Jicama (42.4cm)

Your Body: Your uterus is about 12cm above your belly button.

Symptoms:

• Difficulty sleeping
• Frequent urination
• Leaking urine when laughing or sneezing
• Breast tenderness

Tips:

• Pack your hospital bag
• Finalize birth plan
• Install car seat

Week 33: Baby’s Bones Harden

Your Baby: Baby’s bones harden, except skull bones which remain soft for delivery. Immune system develops. Baby’s pupils can dilate and contract in response to light.

Size: Pineapple (43.7cm)

Your Body: Your baby bump is quite large now.

Symptoms:

• Increased Braxton Hicks
• Swelling in hands, feet, and ankles
• Forgetfulness increases
• Trouble concentrating

Tips:

• Pre-register at hospital
• Wash and organize baby clothes
• Research pediatricians

Week 34: Baby Recognizes Your Voice

Your Baby: Your baby’s central nervous system matures. Baby can recognize familiar voices. Vernix coating thickens. Fingernails reach fingertips.

Size: Cantaloupe (45cm)

Your Body: You may feel very uncomfortable.

Symptoms:

• Increased pelvic pressure
• Frequent urination at night
• Carpal tunnel syndrome
• Vision changes

Medical:

• Discuss labor and delivery preferences with doctor
• Learn signs of preterm labor

Week 35: Baby’s Kidneys Fully Developed

Your Baby: Kidneys are fully developed. Liver can process waste. Baby likely settles into final birth position. Lungs are nearly mature.

Size: Honeydew melon (46.2cm)

Your Body: Your uterus is about 15cm above your belly button.

Symptoms:

• Increased discharge
• Hemorrhoids
• Difficulty walking
• Nesting instinct kicks in

Tips:

• Follow nesting urges but don’t overexert
• Practice breathing techniques
• Review birth plan with partner

---

Month 9: Weeks 36-40

Week 36: Baby Drops Lower

Your Baby: Baby continues gaining about half a pound weekly. Most lanugo hair has shed. Gums are firm with ridges. Baby’s organs are ready for life outside the womb.

Size: Romaine lettuce (47.4cm)

Your Body: Baby may “drop” into your pelvis (lightening).

Symptoms:

• Easier breathing if baby drops
• Increased pelvic pressure
• Waddling walk
• More frequent Braxton Hicks

Medical:

• Weekly prenatal appointments begin
• Group B Strep test performed
• Cervical checks may begin

Milestones:

• Baby is considered “early term” if born this week

Week 37: Baby is Full Term!

Your Baby: Your baby is full term! Brain and lungs continue maturing. Baby practices gripping. Most of the vernix coating has been absorbed.

Size: Swiss chard (48.6cm)

Your Body: Your cervix may begin dilating and effacing.

Symptoms:

• Lightning crotch (sharp pelvic pains)
• Increased discharge
• Possible mucus plug loss
• Burst of energy (nesting)

Tips:

• Ensure hospital bag is ready
• Keep phone charged
• Rest when possible despite nesting urge

Week 38: Baby Sheds Vernix

Your Baby: Baby sheds most vernix coating, which gets swallowed with amniotic fluid. Meconium builds in intestines. Circumference of head and abdomen about equal.

Size: Leek (49.8cm)

Your Body: You’re likely very ready to meet your baby!

Symptoms:

• Extreme fatigue or surprising energy
• Pelvic pressure intense
• Difficulty sleeping
• Emotional ups and downs

Tips:

• Try natural labor-inducing methods (with doctor approval)
• Spend quality time with partner
• Relax and conserve energy

Week 39: Baby Waits for Labor

Your Baby: Your baby’s brain is still developing and will continue after birth. Lungs produce surfactant for breathing. Baby is likely 6-9 pounds.

Size: Mini watermelon (50.7cm)

Your Body: Cervix dilates more in preparation for labor.

Symptoms:

• Possible bloody show
• Water may break
• Regular contractions may begin
• Diarrhea (body clearing out)

Medical:

• Doctor may discuss induction if you go past 40 weeks
• Membrane sweep may be offered

Labor Signs to Watch:

• Regular contractions 5-10 minutes apart
• Water breaking
• Bloody show
• Severe pelvic pressure

Week 40: Baby’s Due Date

Your Baby: Your baby is ready to be born! Growth has slowed. Baby awaits the signal to begin labor. Average weight is 6-9 pounds, length 19-22 inches.

Size: Small pumpkin (51.2cm)

Your Body: You’re ready too!

Symptoms:

• All previous symptoms continue
• Possible labor contractions
• Cervical dilation
• Nesting or extreme fatigue

Tips:

• Stay calm and patient
• Rest when you can
• Trust your body’s timing
• Call doctor when contractions are regular

Remember: Only 5% of babies arrive on their due date. Anywhere from 37-42 weeks is normal!

---

Weeks 41-42: Overdue But Normal

If you reach 41 or 42 weeks, don’t worry—many healthy babies arrive “late.”

What’s Happening:

• Baby continues gaining weight
• Placenta function may decline after 42 weeks
• Amniotic fluid may decrease

Medical Care:

• Increased monitoring (non-stress tests, biophysical profiles)
• Induction typically offered at 41-42 weeks
• Daily kick counts important

Tips:

• Stay in close contact with your healthcare provider
• Continue monitoring baby’s movements
• Try natural induction methods with doctor’s approval
• Stay positive—your baby will come!

---

Important Milestones Throughout Pregnancy

First Trimester (Weeks 1-13)

✓ Positive pregnancy test ✓ First prenatal appointment ✓ Hear heartbeat ✓ First ultrasound ✓ End of highest miscarriage risk period

Second Trimester (Weeks 14-27)

✓ Feel first movements ✓ Anatomy scan (find out gender if desired) ✓ Baby hears your voice ✓ Glucose screening test ✓ Baby’s eyes open ✓ Viability milestone (week 24)

Third Trimester (Weeks 28-40)

✓ Weekly appointments begin ✓ Baby settles into birth position ✓ Full term (week 37) ✓ Group B Strep test ✓ Baby’s due date ✓ Labor and delivery!

---

Tracking Your Pregnancy

Important Things to Monitor

Daily:

• Take prenatal vitamins
• Stay hydrated (8-10 glasses of water)
• Eat nutritious meals

Weekly:

• Document baby’s growth with photos
• Note new symptoms or changes
• Track weight gain

After Week 28:

• Monitor baby’s movement patterns
• Perform kick counts if recommended
• Watch for labor signs

---

Essential Pregnancy Tips for Every Week

Nutrition:

• Eat a variety of colorful fruits and vegetables
• Include protein at every meal
• Take prenatal vitamins daily
• Avoid raw fish, deli meats, and soft cheeses
• Limit caffeine to 200mg daily

Exercise:

• Walk 30 minutes most days
• Try prenatal yoga or swimming
• Listen to your body and don’t overexert
• Avoid contact sports and activities with fall risk

Sleep:

• Sleep on your left side for optimal blood flow
• Use pregnancy pillows for support
• Nap when tired
• Establish a bedtime routine

Emotional Health:

• Join a pregnancy support group
• Communicate with your partner
• Seek help if feeling anxious or depressed
• Practice stress-reduction techniques

Preparation:

• Read pregnancy and parenting books
• Take childbirth classes
• Tour hospital or birthing center
• Choose a pediatrician
• Prepare nursery
• Pack hospital bag by week 36

---

When to Call Your Doctor

Contact your healthcare provider immediately if you experience:

Any Trimester:

• Severe abdominal pain
• Heavy bleeding
• Severe headache
• Vision changes or spots
• Sudden swelling in face or hands
• Fever over 101°F
• Painful urination
• No baby movement for several hours (after week 20)

Third Trimester:

• Regular contractions before 37 weeks
• Water breaking
• Constant severe headache
• Sudden weight gain
• Decreased fetal movement

Trust your instincts! If something feels wrong, call your doctor. It’s better to check than worry.

---

Final Thoughts

Every pregnancy is unique, and your journey will be your own. While this guide provides a general timeline of what to expect each week, remember that variations are normal. Some babies measure ahead, others behind. Some moms feel movement early, others later. What matters most is staying informed, attending prenatal appointments, and maintaining open communication with your healthcare provider.

Key Takeaways:

• Pregnancy lasts about 40 weeks divided into three trimesters
• Your baby develops from a single cell to a fully formed human
• Your body undergoes incredible changes to support this growth
• Every pregnancy is different—don’t compare yours to others
• Stay in regular contact with your healthcare provider
• Trust your body’s ability to grow and birth your baby

Congratulations on this amazing journey. In just 40 weeks, you’ll meet the little person you’ve been growing. Enjoy each week, even the challenging ones, because this special time goes by faster than you think.

Remember: This guide provides general information for educational purposes only and should not replace professional medical advice from your healthcare provider.

---

Congratulations on your pregnancy! Whether you just found out or you’re already weeks along, this complete week-by-week guide will walk you through every stage of your 40-week journey. Understanding what’s happening each week helps you connect with your growing baby and know what to expect next.

Understanding Pregnancy Trimesters

Pregnancy is divided into three trimesters, each lasting about 13 weeks:

• First Trimester: Weeks 1-13 (Months 1-3)
• Second Trimester: Weeks 14-27 (Months 4-6)
• Third Trimester: Weeks 28-40 (Months 7-9)

Each trimester brings unique changes, challenges, and milestones for both you and your baby.

---

First Trimester: Weeks 1-13

The first trimester is a time of rapid development and major changes. Your body is working overtime to create the perfect environment for your baby.

Month 1: Weeks 1-4

Week 1-2: Conception and Implantation

Your Baby: Pregnancy weeks are counted from the first day of your last menstrual period, so conception typically happens around week 2. The fertilized egg travels down the fallopian tube and implants in your uterus by the end of week 3.

Your Body: You might not know you’re pregnant yet. Some women experience light spotting during implantation.

Symptoms:

• Mild cramping
• Light spotting (implantation bleeding)
• No obvious pregnancy symptoms yet

Tips:

• Start taking prenatal vitamins with folic acid if you’re trying to conceive
• Avoid alcohol and smoking
• Maintain a healthy diet

Week 3: You’re Officially Pregnant!

Your Baby: The fertilized egg becomes a blastocyst and implants into your uterine lining. Cells are rapidly dividing.

Size: Smaller than a grain of salt

Your Body: Implantation occurs, and your body starts producing the pregnancy hormone hCG.

Symptoms:

• You likely won’t notice symptoms yet
• Possible light cramping
• Slight temperature increase

Week 4: Positive Pregnancy Test

Your Baby: The blastocyst develops into an embryo with three distinct layers that will form all organs and tissues. The amniotic sac and placenta begin forming.

Size: Poppy seed (2mm)

Your Body: Your missed period prompts you to take a pregnancy test. hCG levels are now detectable.

Symptoms:

• Missed period
• Tender breasts
• Mild cramping
• Bloating
• Mood swings
• Fatigue

Milestones:

• Take a home pregnancy test
• Schedule your first prenatal appointment
• Continue prenatal vitamins

---

Month 2: Weeks 5-8

Week 5: Heartbeat Begins

Your Baby: The neural tube (future brain and spinal cord) forms. The heart begins to beat, though it’s too early to hear on ultrasound yet.

Size: Sesame seed (3mm)

Your Body: Rising hormone levels cause noticeable pregnancy symptoms.

Symptoms:

• Morning sickness begins (can occur any time of day)
• Extreme fatigue
• Frequent urination
• Food aversions or cravings
• Heightened sense of smell

Tips:

• Eat small, frequent meals to manage nausea
• Stay hydrated
• Rest when needed

Week 6: Facial Features Form

Your Baby: Tiny buds appear where arms and legs will grow. Facial features begin forming, including dark spots where eyes and nostrils will be. The heart beats 100-160 times per minute.

Size: Lentil bean (4-5mm)

Your Body: Your uterus is growing, about the size of a plum.

Symptoms:

• Nausea intensifies
• Mood swings
• Breast tenderness increases
• Bloating and gas
• Slight weight gain or loss

Medical:

• First prenatal visit typically scheduled
• Blood tests and physical exam
• Dating ultrasound may be performed

Week 7: Baby Doubles in Size

Your Baby: Your baby doubles in size this week! The brain develops rapidly. Arm and leg buds grow. Tiny fingers and toes begin forming.

Size: Blueberry (10mm)

Your Body: Your uterus has doubled in size since conception.

Symptoms:

• Peak morning sickness
• Excessive saliva
• Frequent urination increases
• Constipation
• Heartburn may begin

Tips:

• Ginger tea or candies for nausea
• Vitamin B6 may help with morning sickness
• Wear a supportive bra

Week 8: Baby Starts Moving

Your Baby: All major organs have begun forming. Your baby starts making spontaneous movements, though you can’t feel them yet. Fingers and toes become more distinct. The tail disappears.

Size: Raspberry (16mm)

Your Body: Your uterus is now the size of a large orange.

Symptoms:

• Continued nausea and fatigue
• Clothes may feel tighter around the waist
• Veins become more visible
• Skin changes (acne or glow)

Milestones:

• Your baby is no longer an embryo but officially a fetus
• Major organs are in place

---

Month 3: Weeks 9-13

Week 9: Baby Looks More Human

Your Baby: Your baby’s face looks more human with eyes fully formed (though still closed). External ears appear. Muscles develop, allowing more movement.

Size: Cherry (22mm)

Your Body: Your uterus continues expanding.

Symptoms:

• Ongoing first trimester symptoms
• Possible weight gain of 1-4 pounds
• Emotional ups and downs
• Increased vaginal discharge

Tips:

• Continue eating small, frequent meals
• Stay active with gentle exercise
• Practice stress-reduction techniques

Week 10: Vital Organs Function

Your Baby: All vital organs are formed and functioning! Tiny nails appear on fingers and toes. The head is still large compared to the body. Baby can swallow and kick.

Size: Strawberry (31mm)

Your Body: Your waistline starts expanding.

Symptoms:

• Morning sickness may start improving
• Round ligament pain (sharp pains in abdomen)
• Visible veins on breasts and abdomen
• Mood swings continue

Medical:

• Some women may hear the heartbeat with a Doppler at prenatal visits

Week 11: Baby’s Growth Accelerates

Your Baby: Your baby’s growth accelerates! Hands can open and close. Tooth buds appear. The diaphragm develops, preparing for breathing.

Size: Fig (41mm)

Your Body: Your uterus fills your pelvis and may be felt above your pubic bone.

Symptoms:

• Energy levels may improve slightly
• Nausea may decrease for some women
• Increased appetite
• Thicker, shinier hair

Tips:

• Start documenting with pregnancy photos
• Begin researching childbirth classes

Week 12: Reflexes Develop

Your Baby: Your baby can curl toes, make sucking motions, and respond to touch (though you can’t feel it). The intestines move from the umbilical cord into the abdomen. Vocal cords form.

Size: Plum (54mm)

Your Body: Your uterus rises above your pelvis.

Symptoms:

• Nausea often improves
• Dizzy spells from blood pressure changes
• Increased discharge
• Less frequent urination as uterus rises

Milestones:

• Miscarriage risk drops significantly
• Many women announce pregnancy after this week

Week 13: End of First Trimester

Your Baby: Your baby’s head is now one-third of total body size. Fingerprints form. Baby can suck their thumb. Vocal cords develop.

Size: Peapod (65-78mm)

Your Body: Your uterus has grown significantly and your abdomen may start showing.

Symptoms:

• Morning sickness typically improves
• Energy increases
• Visible baby bump for some women
• Round ligament pain

Tips:

• Congratulate yourself on completing the first trimester!
• Consider maternity clothes
• Schedule second trimester screenings

---

Second Trimester: Weeks 14-27

The second trimester is often called the “honeymoon period” of pregnancy. Energy returns, morning sickness fades, and you’re not too uncomfortable yet.

Month 4: Weeks 14-17

Week 14: Energy Returns

Your Baby: Your baby can make facial expressions, including squinting and frowning. The thyroid gland starts functioning. Baby can urinate.

Size: Lemon (87mm)

Your Body: The top of your uterus is between your pubic bone and belly button.

Symptoms:

• Increased energy
• Reduced nausea
• Growing appetite
• Constipation may continue
• Round ligament pain

Tips:

• Start gentle pregnancy exercises
• Invest in comfortable maternity wear
• Stay hydrated to prevent constipation

Week 15: Baby Senses Light

Your Baby: Although eyes are still closed, your baby can sense light. Legs grow longer than arms. Baby’s skin is thin and translucent.

Size: Apple (10cm)

Your Body: Your pregnancy may become visible to others.

Symptoms:

• Nose congestion and nosebleeds
• Bleeding gums
• Increased appetite
• Possible weight gain of 5+ pounds

Medical:

• Quad screen or other second trimester genetic testing may be offered
• Amniocentesis available if needed

Week 16: Strong Bones Form

Your Baby: Your baby’s bones become stronger. The nervous system functions better. Baby can hear sounds from outside the womb. Facial muscles work, creating expressions.

Size: Avocado (11.6cm)

Your Body: Your uterus is halfway between your pubic bone and belly button.

Symptoms:

• Glowing skin from increased blood flow
• Some women feel first flutters (especially second-time moms)
• Back pain may begin
• Forgetfulness (pregnancy brain)

Tips:

• Talk or sing to your baby
• Practice good posture to prevent back pain
• Consider pregnancy massage

Week 17: Baby’s Fingerprints Form

Your Baby: Unique fingerprints and toe prints form. Fat begins accumulating under the skin. The skeleton changes from soft cartilage to bone. Baby practices breathing by inhaling and exhaling amniotic fluid.

Size: Turnip (12cm)

Your Body: Your uterus continues growing upward.

Symptoms:

• Increased appetite
• Possible darkening of nipples
• Linea nigra (dark line down belly) may appear
• Mild swelling in hands and feet

Milestones:

• Some first-time moms start feeling baby movements

---

Month 5: Weeks 18-22

Week 18: Baby Hears Your Voice

Your Baby: Your baby can hear your voice, heartbeat, and stomach growling! The ears stand out from the head. Eyes face forward. A protective coating called vernix covers the skin.

Size: Bell pepper (14cm)

Your Body: Your uterus is at belly button level.

Symptoms:

• Definite baby movements (quickening)
• Increased vaginal discharge
• Appetite increases
• Aches and pains from growing uterus

Tips:

• Start talking to your baby regularly
• Play music
• Begin tracking baby’s movement patterns

Week 19: Baby Develops Senses

Your Baby: The five senses develop in specialized brain areas. A protective coating (vernix caseosa) covers the skin. Girls’ uteruses and vaginal canals form.

Size: Heirloom tomato (15cm)

Your Body: Your baby bump is noticeable.

Symptoms:

• Dizziness from changing positions
• Abdominal achiness
• Leg cramps
• Backache

Medical:

• Anatomy scan (20-week ultrasound) scheduled soon
• May learn baby’s gender if desired

Week 20: Halfway There!

Your Baby: Your baby is swallowing more and producing meconium (first bowel movement). Lanugo (fine hair) covers the body. Baby is more active, with regular sleep-wake cycles.

Size: Banana (16.5cm from crown to rump)

Your Body: Your uterus reaches your belly button.

Symptoms:

• Shortness of breath
• Heartburn
• Braxton Hicks contractions may begin
• Stretch marks may appear

Milestones:

• Anatomy ultrasound (detailed look at baby’s development)
• You’re halfway through pregnancy!
• Fundal height measurements begin

Tips:

• Take belly photos to document growth
• Start planning your nursery
• Consider prenatal classes

Week 21: Baby Can Taste

Your Baby: Your baby’s taste buds develop and can taste what you eat through the amniotic fluid. Bone marrow starts producing blood cells. Movements become stronger.

Size: Carrot (26.7cm total length)

Your Body: Your belly continues expanding rapidly.

Symptoms:

• Increased appetite
• Varicose veins may appear
• Spider veins
• Increased libido for some women

Tips:

• Eat a variety of flavors to expose baby to different tastes
• Elevate legs to reduce swelling
• Stay active with prenatal yoga or swimming

Week 22: Baby Looks Like a Newborn

Your Baby: Your baby looks like a miniature newborn with developed eyelids, eyebrows, and fingernails. The pancreas develops. Baby’s lips become more distinct.

Size: Papaya (27.8cm)

Your Body: Your uterus is about 2cm above your belly button.

Symptoms:

• Linea nigra darkens
• Stretch marks
• Swollen ankles and feet
• Increased hair growth

Tips:

• Moisturize skin to ease itching
• Wear comfortable, supportive shoes
• Stay cool and hydrated

---

Month 6: Weeks 23-27

Week 23: Baby’s Hearing Improves

Your Baby: Your baby can hear your voice more clearly. Lungs develop but aren’t ready to function outside the womb yet. Skin is still wrinkled and translucent.

Size: Grapefruit (28.9cm)

Your Body: Your center of gravity shifts with your growing belly.

Symptoms:

• Backache intensifies
• Clumsiness from shifted balance
• Swelling increases
• Braxton Hicks contractions

Tips:

• Use a pregnancy support belt for back pain
• Be cautious with balance
• Sleep on your left side for optimal blood flow

Week 24: Baby’s Face Fully Forms

Your Baby: Baby’s face is fully formed with eyebrows, eyelashes, and hair. The lungs develop branches of the respiratory tree. Baby responds to sound with movement.

Size: Ear of corn (30cm)

Your Body: Your uterus is about the size of a soccer ball.

Symptoms:

• Glucose tolerance test scheduled
• Possible carpal tunnel syndrome
• Tingling hands and feet
• Vision changes

Medical:

• Glucose screening test for gestational diabetes (usually weeks 24-28)

Week 25: Baby Responds to Touch

Your Baby: Your baby responds to touch and may move away if you poke your belly. The nostrils open and baby practices breathing movements. Spine develops.

Size: Rutabaga (34.6cm)

Your Body: Your uterus is the size of a soccer ball.

Symptoms:

• Hemorrhoids may develop
• Increased appetite
• Heartburn worsens
• Difficulty sleeping

Tips:

• Use hemorrhoid cream if needed
• Eat smaller meals to reduce heartburn
• Invest in a pregnancy pillow

Week 26: Baby’s Eyes Open

Your Baby: Your baby’s eyes open for the first time! Baby can respond to light. The lungs produce surfactant, preparing for breathing. Brain develops rapidly.

Size: Scallion (35.6cm)

Your Body: You may feel baby’s hiccups.

Symptoms:

• Baby’s movements visible through your belly
• Increased braxton hicks
• Pelvic pressure
• Headaches

Tips:

• Monitor baby’s movement patterns
• Stay hydrated
• Practice relaxation techniques

Week 27: End of Second Trimester

Your Baby: Baby’s brain develops billions of neurons. Sleep-wake cycles are more regular. Baby can suck their thumb. Lungs, liver, and immune system continue maturing.

Size: Cauliflower (36.6cm)

Your Body: Your uterus is about 7cm above your belly button.

Symptoms:

• Restless leg syndrome
• Leg cramps at night
• Heartburn increases
• Braxton Hicks more frequent

Milestones:

• Entering the third trimester
• Baby’s survival rate if born prematurely increases significantly

Tips:

• Congratulate yourself on completing two trimesters!
• Start preparing for baby’s arrival
• Tour hospital or birthing center

---

Third Trimester: Weeks 28-40

The home stretch! Your baby is growing rapidly, and your body is preparing for labor and delivery.

Month 7: Weeks 28-31

Week 28: Baby Begins Dreaming

Your Baby: Brain waves show baby can dream! Baby’s eyes can move and detect light. Billions of neurons develop. Baby adds fat, smoothing out wrinkled skin.

Size: Eggplant (37.6cm)

Your Body: Your uterus extends well above your belly button.

Symptoms:

• Shortness of breath
• Trouble sleeping
• Frequent urination returns
• Sciatic nerve pain

Medical:

• If Rh-negative, you’ll receive RhoGAM injection
• Prenatal visits increase to every 2 weeks

Tips:

• Sleep with extra pillows for support
• Practice prenatal yoga
• Start planning maternity leave

Week 29: Baby Gets Stronger

Your Baby: Muscles and lungs continue maturing. Baby’s kicks become stronger. Head grows to accommodate brain development. Baby can control body temperature better.

Size: Butternut squash (38.6cm)

Your Body: Growing uterus puts pressure on your ribs.

Symptoms:

• Rib pain
• Hemorrhoids worsen
• Varicose veins
• Increased discharge

Tips:

• Stretch regularly
• Use warm compresses for rib discomfort
• Keep feet elevated when possible

Week 30: Baby’s Vision Develops

Your Baby: Baby’s vision develops—can distinguish between light and dark. Bone marrow produces red blood cells. Lanugo hair begins shedding. Baby weighs about 3 pounds.

Size: Cucumber (39.9cm)

Your Body: You’ve likely gained 18-25 pounds.

Symptoms:

• Increased fatigue
• Mood swings return
• Heartburn intensifies
• Shortness of breath

Tips:

• Start pelvic floor exercises (Kegels)
• Prepare freezer meals
• Finalize baby registry

Week 31: Baby Gains Weight Rapidly

Your Baby: Your baby gains about half a pound per week from now on. Major organs are fully developed except lungs. Baby can turn head from side to side.

Size: Coconut (41.1cm)

Your Body: Amniotic fluid is at maximum volume.

Symptoms:

• Pelvic pressure increases
• Breast leakage (colostrum)
• Braxton Hicks more noticeable
• Forgetfulness

Milestones:

• Baby’s movements should be regular and predictable
• Start kick counts if recommended

---

Month 8: Weeks 32-35

Week 32: Baby Practices Breathing

Your Baby: Baby practices breathing by inhaling amniotic fluid. All five senses work. Fingernails and toenails are fully grown. Baby likely settles into head-down position.

Size: Jicama (42.4cm)

Your Body: Your uterus is about 12cm above your belly button.

Symptoms:

• Difficulty sleeping
• Frequent urination
• Leaking urine when laughing or sneezing
• Breast tenderness

Tips:

• Pack your hospital bag
• Finalize birth plan
• Install car seat

Week 33: Baby’s Bones Harden

Your Baby: Baby’s bones harden, except skull bones which remain soft for delivery. Immune system develops. Baby’s pupils can dilate and contract in response to light.

Size: Pineapple (43.7cm)

Your Body: Your baby bump is quite large now.

Symptoms:

• Increased Braxton Hicks
• Swelling in hands, feet, and ankles
• Forgetfulness increases
• Trouble concentrating

Tips:

• Pre-register at hospital
• Wash and organize baby clothes
• Research pediatricians

Week 34: Baby Recognizes Your Voice

Your Baby: Your baby’s central nervous system matures. Baby can recognize familiar voices. Vernix coating thickens. Fingernails reach fingertips.

Size: Cantaloupe (45cm)

Your Body: You may feel very uncomfortable.

Symptoms:

• Increased pelvic pressure
• Frequent urination at night
• Carpal tunnel syndrome
• Vision changes

Medical:

• Discuss labor and delivery preferences with doctor
• Learn signs of preterm labor

Week 35: Baby’s Kidneys Fully Developed

Your Baby: Kidneys are fully developed. Liver can process waste. Baby likely settles into final birth position. Lungs are nearly mature.

Size: Honeydew melon (46.2cm)

Your Body: Your uterus is about 15cm above your belly button.

Symptoms:

• Increased discharge
• Hemorrhoids
• Difficulty walking
• Nesting instinct kicks in

Tips:

• Follow nesting urges but don’t overexert
• Practice breathing techniques
• Review birth plan with partner

---

Month 9: Weeks 36-40

Week 36: Baby Drops Lower

Your Baby: Baby continues gaining about half a pound weekly. Most lanugo hair has shed. Gums are firm with ridges. Baby’s organs are ready for life outside the womb.

Size: Romaine lettuce (47.4cm)

Your Body: Baby may “drop” into your pelvis (lightening).

Symptoms:

• Easier breathing if baby drops
• Increased pelvic pressure
• Waddling walk
• More frequent Braxton Hicks

Medical:

• Weekly prenatal appointments begin
• Group B Strep test performed
• Cervical checks may begin

Milestones:

• Baby is considered “early term” if born this week

Week 37: Baby is Full Term!

Your Baby: Your baby is full term! Brain and lungs continue maturing. Baby practices gripping. Most of the vernix coating has been absorbed.

Size: Swiss chard (48.6cm)

Your Body: Your cervix may begin dilating and effacing.

Symptoms:

• Lightning crotch (sharp pelvic pains)
• Increased discharge
• Possible mucus plug loss
• Burst of energy (nesting)

Tips:

• Ensure hospital bag is ready
• Keep phone charged
• Rest when possible despite nesting urge

Week 38: Baby Sheds Vernix

Your Baby: Baby sheds most vernix coating, which gets swallowed with amniotic fluid. Meconium builds in intestines. Circumference of head and abdomen about equal.

Size: Leek (49.8cm)

Your Body: You’re likely very ready to meet your baby!

Symptoms:

• Extreme fatigue or surprising energy
• Pelvic pressure intense
• Difficulty sleeping
• Emotional ups and downs

Tips:

• Try natural labor-inducing methods (with doctor approval)
• Spend quality time with partner
• Relax and conserve energy

Week 39: Baby Waits for Labor

Your Baby: Your baby’s brain is still developing and will continue after birth. Lungs produce surfactant for breathing. Baby is likely 6-9 pounds.

Size: Mini watermelon (50.7cm)

Your Body: Cervix dilates more in preparation for labor.

Symptoms:

• Possible bloody show
• Water may break
• Regular contractions may begin
• Diarrhea (body clearing out)

Medical:

• Doctor may discuss induction if you go past 40 weeks
• Membrane sweep may be offered

Labor Signs to Watch:

• Regular contractions 5-10 minutes apart
• Water breaking
• Bloody show
• Severe pelvic pressure

Week 40: Baby’s Due Date

Your Baby: Your baby is ready to be born! Growth has slowed. Baby awaits the signal to begin labor. Average weight is 6-9 pounds, length 19-22 inches.

Size: Small pumpkin (51.2cm)

Your Body: You’re ready too!

Symptoms:

• All previous symptoms continue
• Possible labor contractions
• Cervical dilation
• Nesting or extreme fatigue

Tips:

• Stay calm and patient
• Rest when you can
• Trust your body’s timing
• Call doctor when contractions are regular

Remember: Only 5% of babies arrive on their due date. Anywhere from 37-42 weeks is normal!

---

Weeks 41-42: Overdue But Normal

If you reach 41 or 42 weeks, don’t worry—many healthy babies arrive “late.”

What’s Happening:

• Baby continues gaining weight
• Placenta function may decline after 42 weeks
• Amniotic fluid may decrease

Medical Care:

• Increased monitoring (non-stress tests, biophysical profiles)
• Induction typically offered at 41-42 weeks
• Daily kick counts important

Tips:

• Stay in close contact with your healthcare provider
• Continue monitoring baby’s movements
• Try natural induction methods with doctor’s approval
• Stay positive—your baby will come!

---

Important Milestones Throughout Pregnancy

First Trimester (Weeks 1-13)

✓ Positive pregnancy test ✓ First prenatal appointment ✓ Hear heartbeat ✓ First ultrasound ✓ End of highest miscarriage risk period

Second Trimester (Weeks 14-27)

✓ Feel first movements ✓ Anatomy scan (find out gender if desired) ✓ Baby hears your voice ✓ Glucose screening test ✓ Baby’s eyes open ✓ Viability milestone (week 24)

Third Trimester (Weeks 28-40)

✓ Weekly appointments begin ✓ Baby settles into birth position ✓ Full term (week 37) ✓ Group B Strep test ✓ Baby’s due date ✓ Labor and delivery!

---

Tracking Your Pregnancy

Important Things to Monitor

Daily:

• Take prenatal vitamins
• Stay hydrated (8-10 glasses of water)
• Eat nutritious meals

Weekly:

• Document baby’s growth with photos
• Note new symptoms or changes
• Track weight gain

After Week 28:

• Monitor baby’s movement patterns
• Perform kick counts if recommended
• Watch for labor signs

---

Essential Pregnancy Tips for Every Week

Nutrition:

• Eat a variety of colorful fruits and vegetables
• Include protein at every meal
• Take prenatal vitamins daily
• Avoid raw fish, deli meats, and soft cheeses
• Limit caffeine to 200mg daily

Exercise:

• Walk 30 minutes most days
• Try prenatal yoga or swimming
• Listen to your body and don’t overexert
• Avoid contact sports and activities with fall risk

Sleep:

• Sleep on your left side for optimal blood flow
• Use pregnancy pillows for support
• Nap when tired
• Establish a bedtime routine

Emotional Health:

• Join a pregnancy support group
• Communicate with your partner
• Seek help if feeling anxious or depressed
• Practice stress-reduction techniques

Preparation:

• Read pregnancy and parenting books
• Take childbirth classes
• Tour hospital or birthing center
• Choose a pediatrician
• Prepare nursery
• Pack hospital bag by week 36

---

When to Call Your Doctor

Contact your healthcare provider immediately if you experience:

Any Trimester:

• Severe abdominal pain
• Heavy bleeding
• Severe headache
• Vision changes or spots
• Sudden swelling in face or hands
• Fever over 101°F
• Painful urination
• No baby movement for several hours (after week 20)

Third Trimester:

• Regular contractions before 37 weeks
• Water breaking
• Constant severe headache
• Sudden weight gain
• Decreased fetal movement

Trust your instincts! If something feels wrong, call your doctor. It’s better to check than worry.

---

Final Thoughts

Every pregnancy is unique, and your journey will be your own. While this guide provides a general timeline of what to expect each week, remember that variations are normal. Some babies measure ahead, others behind. Some moms feel movement early, others later. What matters most is staying informed, attending prenatal appointments, and maintaining open communication with your healthcare provider.

Key Takeaways:

• Pregnancy lasts about 40 weeks divided into three trimesters
• Your baby develops from a single cell to a fully formed human
• Your body undergoes incredible changes to support this growth
• Every pregnancy is different—don’t compare yours to others
• Stay in regular contact with your healthcare provider
• Trust your body’s ability to grow and birth your baby

Congratulations on this amazing journey. In just 40 weeks, you’ll meet the little person you’ve been growing. Enjoy each week, even the challenging ones, because this special time goes by faster than you think.

Remember: This guide provides general information for educational purposes only and should not replace professional medical advice from your healthcare provider.