chances of going into labor at 39 weeks with second baby?

Doctors To Pregnant Women: Wait At Least 39 Weeks
July 18, 20115:20 PM ET
Heard on All Things Considered
Gretchen Cuda Kroen
7-Minute Listen
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A rendering of a 36-week fetus in the womb.
Photo Researchers
In her living room, Caroline Nagy introduces the newest member of her family —