Skip Navigation

Main sections

Week 31

Week 31

Your Baby's Development

Pregnancy Calendar

By now your baby is urinating approximately several cups of urine a day into the amniotic fluid. He or she is also swallowing amniotic fluid, which is completely replaced several times a day. Excess fluid in the amniotic sac (known as polyhydramnios) may mean that the baby isn't swallowing normally or that there is a gastrointestinal obstruction. Inadequate 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 tract. Your health care provider will measure your levels of amniotic fluid as part of your routine ultrasound.

Week 31

Your Body

Have you decided whether to breastfeed or formula feed your baby? Although the American Academy of Pediatrics (AAP) 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 have started to make colostrum by now. Colostrum is the pre-milk that provides your baby with calories and nutrients for the first few days before your milk comes in if you plan to breastfeed. For some women, it is thin and watery. For others, it is thick and yellowish. If you notice your breasts leaking colostrum, you can buy disposable or washable breast pads to protect your clothing.

View AllPreviousNext