Pregnancy Guide

34 Weeks Pregnant

Your baby is the size of a Mini Watermelon. Discover exactly what is happening to your body and your baby this week.

New pregnancy guide: Learn how weeks are counted, what each trimester means, and how to interpret your calculator results for better preparation and planning. Read the full guide
Medical & Editorial Review
Content reviewed against NHS and ACOG clinical guidelines.
Last reviewed: August 2026. This information is for educational purposes only and does not substitute professional medical advice. Always consult your healthcare provider.

Week 34 in detail

Lungs almost mature — movements change shape

Baby this week

The central nervous system and lungs are close to term function. Nails are long. There is less room for somersaults, so you feel rolls and jabs more than sweeps. Eyes open when awake and can respond to light. Vernix thickens; lanugo sheds.

  • A change from kicks to rolls is space, not necessarily distress — a change to silence is distress until checked
  • Bones are hard; the skull stays mouldable
  • Born now, most babies do well with support — still a hospital plan

Your body this week

Fatigue is back. Heartburn and back pain are loud. Your clinician will check position. Keep counting movements. Frozen meals you make this week are a gift to 2 a.m. you.

  • If movements drop, use the kick counter and then phone — do not stop at the app
  • A paediatrician shortlist is easier before you are on a postnatal ward
  • Pack the baby’s going-home outfit so it is not a 4 a.m. hunt

Get ready

Freeze a few meals. Pack baby clothes for the hospital. The checklist above is food, outfits, and paediatricians. Six weeks to the due date is an average — bags should already be boringly ready.

A general guide, not medical advice. Scan timing and symptoms vary — ask your clinician.

Baby Growth Curve

This chart visualizes the average length of the baby from week 1 to 40. Values are based on standard clinical averages.

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