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40th Week of Pregnancy

The Wait's Almost Over…

Baby Development at 40 Weeks Pregnant

A surge of hormones in your baby's body might play a part in initiating labor.

 
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Baby's Growth and Development When You're 40 Weeks Pregnant

Only 5% of women deliver on their due dates.

Your due date arrives during the 40th week of pregnancy, but it might come and go without fanfare. Changes in your baby's body prior to birth include:

  • A surge of hormones in your baby's body might play a part in initiating labor.
  • Your baby weighs between 7 and 8 pounds and measures between 18 and 20 1/2 inches long. More or less is OK.
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