3rd Trimester

Week 39 of Pregnancy

Full term! Your baby weighs about 3.3 kg — all systems are ready. The ideal delivery window has begun. Know the signs of labor and when to head to the hospital.

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Your Baby This Week

About the size of a watermelon

Length: ~50cm, 3.3 kg

Quick Answer

At 39 weeks, your baby is full term (~50cm, 3.3 kg). All systems are ready for life outside the womb. The ideal delivery window has officially begun. Your baby could come today, tomorrow, or in two weeks — all normal. Stay alert for labor signs, stay rested, and stay close to your hospital. You’ve made it.

Baby Development at Week 39

Your baby is fully ready:

  • All systems are go — lungs, digestive system, circulatory system, immune system are all functional
  • Brain development continues — it’s been growing rapidly and will continue after birth
  • Skin has a whitish coating — remnants of vernix, which protected skin in the amniotic fluid
  • Baby is producing surfactant — the substance that keeps lungs inflated after first breath
  • Antibodies from you — baby’s immune system has received your antibodies through the placenta. This passive immunity protects baby for the first few months
  • Full head of hair — some babies. Others are born bald. Both normal
  • Chest is prominent — in both boys and girls due to your circulating hormones (breasts may appear slightly swollen at birth — this is temporary and normal)

The average Indian newborn weighs 2.5-3.5 kg at birth. Your baby at 3.3 kg is right in the healthy range.

Your Body at Week 39

You’re full term. Every day now is a waiting game.

Common Symptoms

SymptomWhat’s HappeningWhat Helps
”Is this it?” anxietyEvery cramp, twinge, or back pain makes you wonderTime contractions. Know the signs. Trust the 5-1-1 rule
Cervical dilationYou may be 1-3 cm dilated already without active laborDoctor will check. Being dilated doesn’t mean labor is imminent
Increased dischargeMucus plug may come out in pieces over daysNormal unless heavy bleeding
Intense pelvic pressureBaby is very low, fully engaged in pelvisAlmost there. Warm bath. Rest
Frequent loose stoolsProstaglandins preparing your body — affect bowels tooStay hydrated. Often a sign labor is near
Fatigue alternating with energyHormonal fluctuations. Nesting burstsRest when tired. Don’t overdo nesting
Emotional intensityReady but scared. Excited but impatientCompletely normal. Talk to your support person

Signs Labor Is Starting

Pre-labor signs (hours to days before active labor):

  • Bloody show — mucus tinged with pink/brown
  • Loose stools / diarrhea
  • Nesting urge intensifies
  • Backache that comes and goes
  • Feeling restless or emotional
  • Slight weight loss

Early labor:

  • Contractions start — irregular at first, then forming a pattern
  • Each contraction lasts 30-60 seconds
  • Coming every 15-20 minutes, then getting closer
  • Can talk through them initially

Active labor (go to hospital):

  • Contractions every 5 minutes, lasting 1 minute, for 1 hour (5-1-1)
  • Can’t talk through them
  • Need to stop and breathe
  • May feel nauseous

What to Expect at the Hospital

When You Arrive

  1. Triage assessment — cervical check, baby’s heart rate monitoring (CTG)
  2. If less than 4 cm dilated — you may be sent home. This is normal for first-time mothers
  3. If 4+ cm dilated — you’ll be admitted to the labor ward
  4. IV line — may be placed for fluids and medication access
  5. Continuous monitoring — baby’s heart rate tracked throughout

During Active Labor

  • Contractions will intensify — this is your body doing its job
  • Request pain relief when you need it — there’s no medal for suffering
  • Move around, change positions, use a birthing ball if available
  • Drink water/juice between contractions
  • Your support person can help with massage, encouragement, and advocacy

Pushing

  • Urge to push comes naturally at 10 cm dilation
  • Push with contractions, rest between them
  • Follow your doctor/midwife’s guidance
  • First-time mothers: pushing phase can last 1-3 hours
  • Second-time mothers: often much shorter

Immediately After Birth

  • Skin-to-skin contact — baby placed on your chest
  • Delayed cord clamping — 1-3 minutes if possible
  • First breastfeed — within 1 hour
  • Apgar score — baby assessed at 1 and 5 minutes
  • Birth vaccines — BCG, Hep B, OPV-0 within 24 hours
  • Vitamin K injection — prevents bleeding disorder in newborns

Tests & Screenings Due

Weekly Visit

  • Blood pressure — still watching for preeclampsia until delivery
  • Urine test
  • Baby’s heartbeat
  • Cervical check — dilation and effacement
  • Baby’s position
  • Discuss induction timeline — if no labor by 40 weeks, what’s the plan?

NST (Non-Stress Test)

May be done at this visit to confirm baby is doing well — reactive (normal) heart rate pattern.

Nutrition This Week

  • Keep eating — you need energy reserves for labor
  • Light, easily digestible meals — dal-chawal, khichdi, soup, fruit, toast
  • Stay hydrated — water, coconut water, nimbu paani
  • Quick energy foods within reach — honey, glucose, juice, dates
  • During labor: follow your hospital’s guidelines. Many allow light eating in early labor

When to Call Your Doctor

Go to Hospital (5-1-1):

Contractions every 5 minutes, lasting 1 minute, for 1 hour.

Go IMMEDIATELY — Don’t Wait:

  • Water breaks — note time, color, amount. Green/brown = emergency
  • Heavy vaginal bleeding — soaking a pad in an hour
  • Severe headache + visual changes — preeclampsia/eclampsia risk
  • Baby not moving — no movements for hours
  • Cord visible or felt at vagina — ambulance. All fours position
  • Severe constant abdominal pain — not in waves (possible abruption)
  • Fever + chills — infection risk

Trust Your Gut

If something feels wrong, go. You know your body. Don’t worry about “bothering” anyone or being sent home. Better safe.

What’s Coming Up

  • Week 40: Your due date — but only 5% of babies arrive exactly on this date
  • If no labor by 40 weeks: Doctor will discuss monitoring plan and potential induction timeline
  • After birth: Focus on recovery, breastfeeding, bonding, and newborn care

Aapke Sawaal (Common Questions)

39 weeks ho gaye — kya induce karwa sakte hain?

39 weeks full term hai aur technically induction safe hai, lekin agar koi medical reason nahi hai toh natural labor ka wait karna better hai. Induction is not “easier” — it can make labor longer and more intense. Agar aap sirf impatient hain, toh wait karein. Agar medical reason hai (preeclampsia, diabetes, reduced movements) toh doctor recommend karenge.

Delivery ke baad kya expect karein?

Pehle 24 ghante: Bahut thakan hogi. Baby skin-to-skin rakhein. Breastfeeding shuru karein — pehla doodh “colostrum” hai, thick yellow, bahut important immunity ke liye. Urine aana chahiye 6 ghante mein. Bleeding hogi (lochia) — ye normal hai. Baby ko teen vaccines lagenge — BCG, Hep B, OPV-0. Doctor aapko aur baby dono ko check karenge discharge se pehle.

Normal delivery ke liye kya kar sakte hain 39 weeks mein?

Walking bahut help karti hai — gravity baby ko neeche laane mein madad karti hai. 6 dates khana continue karein. Hydrated rahein. Rest karein par active bhi rahein. Kuch log nipple stimulation recommend karte hain lekin pehle doctor se poochein. Squats aur pelvic exercises cervix dilate karne mein help kar sakte hain. But ultimately, baby tab aayega jab ready hoga — aap sirf conditions improve kar sakti hain.

Week 39 Checklist

  • Attend weekly prenatal visit
  • Hospital bag ready, transport arranged, phone charged
  • Continue kick counts — any reduction, call immediately
  • Review labor signs with partner — 5-1-1 rule, when to go immediately
  • Rest as much as possible — conserve energy for labor
  • Keep eating light, nutritious meals
  • Stay close to your hospital — don't travel far
  • Review immediate danger signs: water breaks, heavy bleeding, severe headache + visual changes, baby not moving, cord visible

Have Questions About Week 39?

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Medically Reviewed

by Babynama Pediatricians · Updated 2026-03-12