Pregnancy Guide

24 Weeks Pregnant

Your baby is the size of a Medium Eggplant. 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

Week 24 in detail

Viability week — lungs start making surfactant

Baby this week

Around 24 weeks, some babies survive with specialist neonatal care. That is a hospital statistic, not a promise. Lungs begin making surfactant, the soap-like film that keeps air sacs open after birth. Hearing and movement responses are consistent.

  • Surfactant is a lung milestone you cannot feel
  • The brain is smoothing out folds; thinking as we mean it is still far off
  • Skin is less transparent as fat is laid down

Your body this week

The glucose tolerance test often happens now. Tiredness returns. Braxton Hicks may be more noticeable. Learn preterm-labour signs: regular cramps, a dull low backache that does not ease, fluid or bloody discharge, pelvic pressure that feels new.

  • A failed glucose screen is extra care, not a moral score
  • If you cannot feel 10 movements later in pregnancy, you will use a kick counter — start noticing patterns now
  • Work physical load may need a written adjustment

Get ready

Do the glucose test. Know preterm signs so you are not guessing at 2 a.m. The checklist above is the test, signs, and nursery safety. If you think labour is starting this early, phone the maternity unit — do not drive in circles first.

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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