Nov 18 (Reuters) - Most U.S. doctors believe pregnancy
starts when the sperm fertilizes the egg, a survey shows,
contradicting the position of a key medical group with a view
that could potentially affect U.S. policy and laws regarding
contraception and research.
The American College of Obstetrics and Gynecology (ACOG), the
leading organization for this field of medicine, defines
pregnancy as beginning when the fertilized egg implants in the
uterus, roughly a week after fertilization.
Read the complete story(Some news sites require registration)