Pregnancy - 16 weeks

16 Weeks Pregnant 

Your baby's about the size of an avocado now but in the next three weeks, he'll go through a tremendous growth spurt - doubling his weight and increasing his length. In the meantime, he'll be playing with his umbilical cord and practising breathing. You're going through a bit of a growth spurt yourself. Your uterus has expanded so much that the ligaments in your abdomen are stretching to make room for it. If you feel any twinges of pain now, that's why.