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Trimester 3 · week by week

Pregnancy week 38

At about 49.8cm in week 38 the baby is storing meconium.

Week 38

What is happening in week 38

Doctors count pregnancy weeks from the first day of your last period, so week 38 sits in the third trimester (week 28 until birth). That is about 2 weeks to go until week 40, and about 8.7 months by a rough conversion. At about 49.8cm in week 38 the baby is storing meconium.

Your baby

The NHS guide gives about 49.8cm, a stick of rhubarb. Most of the fine downy lanugo hair has gone, and the baby is storing meconium, the sticky green substance that normally comes out as the first poo after birth.

Your body

Waiting can bring frustration or boredom. Painless Braxton Hicks contractions, backache, swollen hands and feet and sleep problems may continue.

This week’s to-do

  • Attend your antenatal appointment; the midwife or doctor will measure the bump, check blood pressure and test urine for protein.
  • If you are having a planned caesarean, the NHS says it is usually booked for 39 weeks or later.
  • Rest and keep your phone charged.

When to call

Call your doctor or hospital if you have any bleeding, or if you have severe headaches, as the NHS links protein in the urine to a possible pre-eclampsia risk.

Chaitanya Hospital in Kadapa, near RTC Bus Stand, Simhapuri Colony, provides delivery and emergency care 24/7. Our antenatal check-ups team can answer questions about your own pregnancy.

Use the week-by-week guide to jump to your week, or the due date calculator to work out your dates. Timings for scans and tests come from NHS guidance in the UK and can differ from your doctor’s schedule, so always follow your own doctor’s advice. This page is educational and not a substitute for a doctor.

Sources

Text on this page is paraphrased from the sources above. Sizes are averages and vary between babies.

Frequently asked questions

How many months is week 38 of pregnancy?

Week 38 is about 8.7 months. This is only an estimate, because months are not a fixed number of weeks and doctors count in weeks from the first day of your last period. Ask your doctor how far along you are.

How is my baby growing in week 38?

At about 49.8cm in week 38 the baby is storing meconium. Sizes are averages, and every baby is different.

When should I call my doctor in week 38?

Call your doctor or hospital if you have any bleeding, or if you have severe headaches, as the NHS links protein in the urine to a possible pre-eclampsia risk. You can also reach Chaitanya Hospital in Kadapa for delivery and emergency care 24/7.

Your care journey starts with one call

Book a visit, ask a question on WhatsApp, or call us any time. Delivery and emergency care are open 24/7.