Third trimester · Week 29 of 40
29 weeks pregnant: the size of a butternut squash
Muscles and lungs keep maturing; bones are fully formed but still soft.
Reviewed against ACOG, NHS and WHO guidance · Updated November 2026
Typical size
About 38 cm · 1.15 kg
73% of the way to your due date
Your baby this week
Muscles and lungs keep maturing; bones are fully formed but still soft.
Your body this week
Braxton Hicks (practice) contractions may begin.
Tip for week 29
Contact your provider if movements slow down noticeably — do not wait.
Carry this guide in your pocket
Mamivaa is a free pregnancy app with a week-by-week tracker, vitamin and water reminders, a food scanner and a baby checklist.
Start freeThis guide offers general information and does not replace advice from your doctor or midwife. If something feels wrong, contact your provider or emergency services.