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Archive Home > 2006 > April > 13 > Average pregnancy shortens by one week

Average pregnancy shortens by one week

Researchers unsure of cause for change

By Markian Hawryluk / The Bulletin
April 13, 2006

The most common length of pregnancy is now only 39 weeks, and researchers are not sure why.

In a study published in the journal Seminars in Perinatology, researchers from the March of Dimes said the average duration of pregnancy is now a week shorter than the traditional 40-week definition of a....

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Published daily in Bend, Oregon, by Western Communications, Inc. Copyright 2007.