Week 30 · Third trimester
Week 30, gently.
Your baby is the size of
a cucumber
- 39.9 cm long
- 1319 g
The baby's brain is developing grooves and ridges this month — gaining detail fast.
“A brain putting in the folds that will someday know everything you know.”
What’s happening inside
The brain is developing its characteristic wrinkles and folds — cortical complexity. Eyes can track light sources across the womb.
How you might feel
Ten weeks to go, give or take. Swelling in feet and ankles by evening is common. Elevate when you can.
