Birth Control

The prevention of contraception

For a particular birth control technique, the percentage of pregnancies during the first year of use by couples who use the technique properly and consistently.

For a particular birth control technique, the percentage of pregnancies during the first year of use by all couples who use the technique, regardless of whether or not they use it properly or consistently.

Withdrawal of the man's penis fro his partner's vagina before ejaculation in order to avoid conception. It is sometimes ineffective because fluids from the Cowper's glands may contain sperm.

A feminine hygiene practice of rinsing out the vagina, usually with specifically prepared solutions.

In reference to contraception, the sucking response by a baby on the mother's nipple inhibits release of follicle-stimulation hormone, thus preventing ovulation.

Methods of birth control that attempt to prevent conception by having a couple abstain from sexual intercourse during the woman's ovulation.

A fertility awareness method of birth control that attempts to determine a woman's fertile period by use of a mathematical formula.

A fertility awareness method of birth control for women who typically have menstrual cycles of 26 to 32 days.

The temperature of the body while resting. It rises slightly after ovulation.

A fertility awareness method of birth control in which changes in the consistency and quantity of cervical mucus are used to tell when ovulation has occurred.

The slimy secretion of mucous membranes located inside the cervix.

A combination of the basal body temperature and Billings fertility awareness met

Chemicals that kill sperm. In most products, the chemical nonoxynol-9

General term for contraceptive methods that block the passage of sperm