All About Baby
In your 19th week of pregnancy, your unborn baby's organs continue to grow. His body is covered with lanugo—soft hairs and a sticky protective coating that keeps his skin from drying out in the amniotic fluid. Your baby is moving frequently, and by now you should be able to feel those movements. Your physician can hear your baby-to-be's heartbeat with a stethoscope placed on your abdomen.
Baby is covered in vernix, a white, cheesy "cream" that protects her skin from the long bath in amniotic fluid. Preemies are covered in vernix at birth—"posties" have almost none.