31 weeks

Your baby weighs just over 3 pounds and is a bit more than 16 inches long. She's probably moving more than ever before, too, so you may even have trouble sleeping because your baby's kicks and rolls keep you up at night. If you're having this problem, comfort yourself with the knowledge that your baby is active and healthy. You may also start to feel your uterus contract every now and then as your body gears up for delivery day. These Braxton Hicks contractions aren't the real thing, but if you get more than four contractions in an hour, give your doctor or midwife a call to make sure it's not preterm labor.