Among These Contraception Methods, the Highest Risk of Accidental Pregnancy

Question

Among these contraception methods, the highest risk of accidental pregnancy accompanies
A) the use of a diaphragm.
B) the use of a condom.
C) the practice of coitus interruptus.
D) a verified vasectomy.
E) the practice of the "rhythm method."

Accepted Answer

Coitus interruptus, or withdrawal, is one of the least reliable methods of contraception due to the difficulty in timing withdrawal and the possibility of pre-ejaculate fluid containing sperm.