11 Weeks!

This is what the books are telling me:

"You're getting close to the end of the first trimester. Most of the baby's critical development will be behind you after the next couple of weeks, and the odds of miscarriage will soon drop considerably.

Measuring from the crown of his head to his rump, your 1.5-inch/ 4-centimeter fetus has all his parts, from tooth buds to toenails. Your baby is busy kicking and stretching; his movements are so fluid they look like water ballet. Fingers and toes have fully separated. Now the fetus's main task during the next six months will be to grow larger and stronger until it can survive on its own outside the womb."