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.
Gynecologists from the USA have separated this concept into 4 stages: 1  early term 37-39 weeks of pregnancy; 2  completely full-term 39-41 weeks of pregnancy; 3  late-full-term 41-42 weeks of pregnancy; 4  postterm pregnancy more than 42 weeks. So, after the 37th week of pregnancy, the child is considered full-term and ready to the birth. Of course, he will be not as large as children who are born on 41th week of pregnancy, but all childâs organs are already created and capable to be full-functional.