Weighing in at four pounds and about sixteen inches long, your baby is growing amazingly fast now. His red, wrinkled skin is losing its fine lanugo covering as more insulating fat accumulates. And his eyelids, closed for so long, can now open and afford him a dim view of the place he will call home for just a few more months.

Dramatic developments in the brain and central nervous system are also occurring. Your baby feels pain, can cry, and responds to stimulation from light or sound outside the womb. Periodically, tiny elbows and feet will turn your belly into an interactive relief map.