All About Baby
Your baby's lungs and brain are beginning to mature. Although he'd have a good chance of survival if he were born now, he could use a few more weeks of growing. Added layers of fat are continuing to form. These layers will help your baby regulate his temperature once outside the womb and help keep him warm.
Remember to count your fetal movements. Every fetus has its most active times (and often it's late at night when you are trying to catch a few zzzzs!). During his active periods, your baby should move 10 times an hour. Choose an hour, and mark each movement on a piece of paper. If your baby hasn't moved 10 times, drink some juice and count again for another hour. You should call your doctor if the baby hasn't moved at least ten times during any two-hour stretch.