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Third Trimester

Q&A: Fetal Development In Third Trimester?

What basic changes does my baby go through in the third trimester?

In the third trimester (weeks 29 through delivery), most major development has already happened. This is the time for baby to hang around gaining weight — about half a pound each week, at least until week 37. She's still kicking and stretching, though her movement might slow down as she gets more cramped in the tight space of your belly. The coating of fine hair on her body (called lanugo) sheds away and the bones get nice and hard (except the skull, which stays soft and flexible for the big squeeze through your birth canal).

By Erin Walters