FirstWeeksYour baby at 29 weeks: sitting solo
Medically-informed · Sources: CDC · Updated June 2026
Independent sitting commonly locks in around now — hands free, posture proud, world at a new angle.
What’s happening
The sit is stable
Solid solo sitting frees both hands for serious toy work: banging two things together is the hit single of the month.
Pre-crawling shapes
Pivoting on the belly, pushing backwards, rocking on hands and knees — the launch sequence is loading in whatever order your baby prefers. Some skip crawling entirely; commonly seen and fine.
Two naps, maybe
Many babies consolidate toward two longer naps around this stretch; the transition weeks are commonly bumpy.
What to do
- Get on the floor at eye level — it's the best play position now
- Give push-worthy targets: a toy just out of reach motivates movement
- If naps are chaos, hold a loose 2-nap frame for a week before changing course
When to check in
Can't sit even with support, or strongly favors one side — bring to your pediatrician.
This is exactly what FirstWeeks shows you — matched to your baby
Week 29 guidance, skills to watch, and answers that know your baby’s age and log.
