Mother:
You are still tired, and nauseated, hang on only a few more weeks for most of you! Your abdomen may begin to pooch out, but it will be more from bowel distension than the uterus. Your waistline is slowly disappearing! Remember to measure your waist and belly now! Comparing later can be a lot of fun!
Baby
The baby now enters it's fetal period. The average size is approximately 27-35 mm crown to rump length (CRL), or 1.06-1.38 inches. S/he weighs in at 4 grams, or 4 paper clips. Tiny toes have formed. The eyes are largely open, but the eyelids are beginning to fuse, and will stay that way until 25-27 weeks. External genitalia is beginning to differentiate. External ears are completely formed, as well as the upper lip. The biggest accomplishment this week is the disappearance of the tail!
Twin Tips:
Try to find a time to rest each day, it's a great start on alleviating stress and lack of sleep. Even if it's 20 minutes, it's good for you and the babies! Try a body pillow as your belly grows, this can help you make the most of your down time.