32 weeks

It's getting awfully snug in there! Your baby weighs almost 4 pounds and is almost 17 inches long. You're gaining a pound a week now (HA, MORE LIKE 3!), and roughly half of that goes right to your baby. In fact, he'll gain a third to half of his birth weight during the next seven weeks as he fattens up for survival outside the womb. She has tiny toenails now, and her fingernails have grown in, too. Some babies have a head of hair already; others have only peach fuzz