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31st Week of Pregnancy

No More Bad-Hair Days

Baby Development at 32 Weeks Pregnant

As trillions of brain connections develop, your baby is already using all five senses.

 
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Baby's Growth and Development When You're 31 Weeks Pregnant

During your 31st week of pregnancy, your baby's body and brain continue to make the connections that enable her systems to work as a whole. Also when you're 31 weeks pregnant:

  • When you're 31 weeks pregnant, your baby weighs more than 3 pounds and is 11 inches long from crown to rump, about the length of a bunch of bok choy.
  • Your baby's reproductive system continues to develop. In boys, testicles are moving from the kidneys through the groin to the scrotum. In girls, her clitoris is visible, but her labia are still growing to cover it.
  • Your baby's lungs are now more developed but are not completely mature.
  • As trillions of brain connections develop, your baby is already using all five senses.
  • You might notice that your baby has more defined periods of being awake (and active) or asleep.
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