A Woman is Considered Pregnant When

Question

A woman is considered pregnant when:
A)Sperm are in the uterus
B)The sperm and egg combine
C)Sperm are in the vagina
D)The fertilized egg implants in the ovary
E)The developing embryo implants itself in the endometrial lining

Accepted Answer

About 7 to 10 days after fertilization the embryo begins the process of implanting in the wall of the uterus.The trophoblast secretes enzymes to digest away some of the tissue and blood vessels of the endometrium of the uterus.The embryo is now about the size of the period at the end of this sentence.This is when pregnancy "begins".