Pregnancy and Pregnancy Termination - Research Article from Encyclopedia of Sociology

This encyclopedia article consists of approximately 21 pages of information about Pregnancy and Pregnancy Termination.
This section contains 6,288 words
(approx. 21 pages at 300 words per page)
Buy the Pregnancy and Pregnancy Termination Encyclopedia Article

Pregnancy

Pregnancy is typically divided into trimesters, which are uneven in length. Obstetricians invariably refer to "weeks" of pregnancy, meaning the number of weeks from last menstrual period, or when the last menstrual period should have occurred. The first trimester lasts from 3 to 12–14 weeks, the second from 12–14 to 24–26, and the third from 24–26 to delivery. The terminology is confusing, as menstrual age (the time since the last period) is not the same as gestational age (the time since fertilization, the union of the sperm and ovum). Therefore gestational age will be 2 weeks less than menstrual age. The system evolved in an era when many or most women could recall a last menstrual cycle, but few knew when conception or fertilization occurred. Now, more women may be aware of the date when conception occurred, and some pregnancies occur after assisted reproductive technologies (ART), when...

(read more)

This section contains 6,288 words
(approx. 21 pages at 300 words per page)
Buy the Pregnancy and Pregnancy Termination Encyclopedia Article
Copyrights
Encyclopedia of Sociology
Pregnancy and Pregnancy Termination from Encyclopedia of Sociology. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
Follow Us on Facebook