§third trimester · week 38 of 40
you're 38 weeks pregnant.
last revised · baby is about 49.8 cm (19.6") · 3080 g (108.6 oz)
about the size of a leek.
All systems are go — the baby is ready for birth and just adding final touches of fat and brain connections.
this week's highlights
- Final fat layers
- Vernix mostly gone
- Practice breathing strong
- Brain continues growing
how your baby looks
Plump and ready. Most of the vernix is gone except in skin folds. Hair on head varies — from full to none.
body in focus
- head
- Brain growth continues, ready for the outside world.
- body
- Final fat layers fill out the body.
- hands
- Grasp reflex is strong enough to support some body weight at birth.
- feet
- Stretches more than kicks in the tight uterus.
what's happening in your body
You may feel impatient and uncomfortable. Pelvic pressure, lightning crotch (sharp pelvic zings), and Braxton-Hicks are routine.
gentle tips
- Walk daily to encourage labor onset.
- Practice all labor positions one more time.
- Stay close to home and hydrated.
- Trust your body and your team — birth is near.
- Plan small daily activities you'll miss after baby arrives.
what to expect next
Most babies are born between weeks 39 and 41. If labor hasn't started by week 41, your provider may discuss induction.