Doctors disagree on when pregnancy starts: U.S. survey
http://www.parentcentral.ca/parent/babiespregnancy/pregnancy/article/1089404–doctors-disagree-on-when-pregnancy-starts-u-s-survey November 18, 2011 Kerry Grens Reuters New guidance from the Society of Obstetricians and Gynecologists is warning Canadian women against postponing pregnancy for too long. NEW YORK—Most U.S. doctors believe pregnancy starts when the sperm fertilizes the egg, a survey shows, contradicting the position of a key medical group […]