The practice of birth control or preventing pregnancy is as old as human existence. For centuries, humans have relied upon their imagination to avoid pregnancy. With no method of birth control during sexual intercourse, a woman of childbearing age with normal fertility has an 85% chance of becoming pregnant in 1 year.
Behavioral methods that don’t use hormones such as birth control pills or mechanical devices such as condoms are in use throughout the world, especially in underdeveloped nations. They often have high failure rates, meaning they don’t work effectively and women become pregnant.
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