Week 21 Update

"Your baby weighs approximately 12 ounces and is about 10.5 inches head to heel and is now busy putting fat onto those tiny bones. Most likely, you have felt his or her in-utero gymnastics by now, since lots of amniotic fluid provides plenty of room to move. Fetuses have sleep and wake cycles, and you may find that these get more predictable as the months progress. But they may not coincide with yours: babies in the womb are typically active in the late evening, just when Mom is trying to get to sleep. "