Your baby at 29 weeks
Muscles and lungs continue developing. The head grows as the brain develops.
The baby gains more body fat. Individual growth is assessed through your pregnancy-care plan.
TRIMESTER 3 · WEEK 29
What to expect at 29 weeks pregnant: your baby, your symptoms and this week’s reminders.
Muscles and lungs continue developing. The head grows as the brain develops.
The baby gains more body fat. Individual growth is assessed through your pregnancy-care plan.
None of these symptoms is required. Symptoms alone cannot diagnose pregnancy or establish your baby’s wellbeing.
Sudden swelling of the face or hands, severe headache or visual changes need urgent contact with your team.
Source for this week: NHS — Week 29
Measurement note: early lengths are head-to-bottom; from week 20 they are head-to-heel. The numbers across that change should not be compared as if the measurement method were the same.
YOUR WEEK, YOUR JOURNEY
Choose a week to explore your baby’s development and changes you may notice.
This is source-based general information, not a substitute for a clinical assessment or individual care plan. The presence, absence or change of symptoms alone cannot establish pregnancy wellbeing. This content is not a personalised care plan reviewed by a healthcare professional.
This guide groups weeks 1–13 in the first trimester, 14–27 in the second, and 28 onwards in the third. Weeks refer to gestational age dated from the last menstrual period; clinical dating may differ.
Sources checked: 31 October 2026 · Illustrations are AI-generated conceptual drawings, not ultrasound or diagnostic images.