Week 17 · Second trimester
Week 17, gently.
Your baby is the size of
a pear
- 13.0 cm long
- 140 g
Baby is laying down fat under the skin now — preparing for a life outside.
“Small fat cells finding their place, stocking the pantry.”
What’s happening inside
Fat begins to form under the skin — it will keep the baby warm after birth. The skeleton is transitioning from flexible cartilage to harder bone.
How you might feel
A side-sleeping position (especially the left side) is now the recommended default. A pillow between the knees helps enormously.
