Week 21

Fetal Development:
The rapid growth phase begins to slow down this week. The heart grows stronger this week, and the legs are reaching their relative proportions.

Maternal Changes:
Over halfway there, and you're probably showing now. Your uterus is about 1/2 inch above your belly button. The average weight gain is between 10 and 15 pounds at this point. If you're eating a healthy diet, don't count pounds and calories too strictly. Emotionally, you're probably feeling more stable and comfortable.

Your ankles and feet may be swelling, particularly at the end of the day. Drink lots of water and rest with your feet elevated.