Your Baby's Development
Your baby receives all the nutrients he or she needs through the placenta, and the placental blood flow is what allows your baby to produce urine. Your baby urinates approximately half a liter of urine a day into the amniotic fluid. He or she also swallows some of the fluid, which is completely replaced several times a day. Excess fluid in the amniotic sac (a condition known as polyhydramnios) may mean that the baby isn't swallowing normally or that he or she has a gastrointestinal obstruction. Not enough fluid in the amniotic sac (oligohydramnios) may mean that the baby isn't urinating properly, and could indicate a problem with the kidneys or urinary system. Your health care provider will measure your levels of amniotic fluid as part of your routine ultrasound.

Your Body
Have you decided whether to breast-feed or bottle-feed your baby? Although the American Academy of Pediatrics recommends breast milk as the best form of infant nutrition, the decision about how to feed your child is a personal one. Talk to your health care provider or a lactation consultant if you need more information before making your choice.

The milk glands in your breasts may start to make colostrum around this time. Colostrum is the thick, yellowish milk that will provide your baby with calories and nutrients for the first few days before your milk comes in if you plan to breast-feed. If you notice your breasts leaking colostrum, you can purchase disposable or washable breast pads that will protect your clothing.