Baby development at week 29
The head grows to make room for a rapidly developing brain. Bone marrow keeps making red blood cells. Movements may feel like rolls rather than flutters.
Average size estimates for week 29 are about 38.6 cm and 1153 g — roughly cauliflower. Your ultrasound report and clinician’s dating override any website average.
What you might feel
Round ligament twinges can sharpen with sudden stands. Move intentionally from bed to standing.
You are in the third trimester. Two pregnancies at the same week can feel completely different — treat these notes as orientation, not a checklist you must match.
Movements in week 29
By now, many clinicians encourage intentional awareness of fetal movement. Learn your baby’s usual active window, then use Preglo’s kick counter to log a calm session. Read how to count baby kicks if you want a simple method, or the 10-kick count overview. If movements feel clearly reduced, contact your care provider — see reduced fetal movement.
What to track this week
- Symptoms, mood, sleep, and energy in your daily log
- Water intake toward a simple daily goal
- Appointment dates and questions for your care provider
- Scan dates and follow-up notes after ultrasound visits
- Kick sessions once movements feel regular — same time of day when you can
A calm next step in Preglo
Save kick session history; comparing this week to last week is the real point of counting.
Also useful: due date calculator · all weeks · Preglo features
Nearby weeks: Week 27 · Week 28 · Week 30 · Week 31
Educational averages only — not medical advice. Contact your clinician for symptoms that worry you, bleeding, severe pain, or reduced movements.