U. S. Sen. Hillary Rodham Clinton, D-NY, and, former President Bill Clinton, blow out the candles on a cake at Hillary Rodham Clinton's 59th birthday party at Tavern on the Green in New York, Thursday, Oct. 26, 2006.
The unborn baby spends around 38 weeks in the uterus, but the average length of pregnancy, or gestation, is counted at 40 weeks. Pregnancy is counted from the first day of the womanâs last period, not the date of conception which generally occurs two weeks later.
Reviewed by Laura J. Martin, MD. May 23, 2011 -- Babies born between 39 and 41 weeks of pregnancy fare better than infants born during weeks 37 or 38, a study shows. A term birth is considered 37 to 41 weeks, but the new study suggests it is more of a continuum.The findings appear in Obstetrics & Gynecology.eviewed by Laura J. Martin, MD. May 23, 2011 -- Babies born between 39 and 41 weeks of pregnancy fare better than infants born during weeks 37 or 38, a study shows. A term birth is considered 37 to 41 weeks, but the new study suggests it is more of a continuum. The findings appear in Obstetrics & Gynecology.