Your Baby - 20 Weeks Pregnant
Over the last four weeks, your baby has grown an incredible amount, and has just about quadrupled his weight. He's big enough that you should be feeling fluttering or quickening quite regularly now. In fact, from his movements you may be able to tell if your baby is awake or asleep. Your baby is anywhere from 20 - 26 cm (8 to 10 inches) long and weighs 285-300 grams (10-11oz).
Your baby has started to practice breathing motions, even though his lungs are not yet mature enough to breathe enough air to allow him to survive outside your body. Lanugo (the fine hair) covers your baby's whole body, and hair on his scalp is beginning to grow. Your baby's ears are fully functional now and he enjoys the sound of uterine noise. All the organs and structures of your baby's body are formed and your baby is now entering a period of simple growth. And you may be getting ready to be a grandma already: if your baby is a girl, her uterus is beginning to develop!