baby : your baby measures about 7. 2 inches from crown to rump and weighs about 10. 5 ounces. the fetus is steadily gaining fat to keep warm. growth rate is slowing down but organ systems like digestion are continuing to mature. a waxy film called the vernix caseosa is being produced by your baby's oil glands and covers the skin to keep it supple in the amniotic fluid. buds for permanent teeth are beginning to form. mom-to-be : friends relatives even strangers can probably tell you're pregnant by now. your uterus is starting to extend above your navel. you've probably gained between 10 and 14 pounds by now. tip for the week : start looking into childbirth classes if you haven't already.
what should i expect during week 21 of my pregnancy?