DEPO-PROVERA is an injection that uses a synthetic version of the hormone, progesterone (like the birth control pill), to prevent pregnancy. However, DEPO-PROVERA does not contain estrogen. You receive the injection from your health care provider. It is given in the buttocks or upper arm.
Like other hormonal birth control methods including the pill, DEPO-PROVERA causes a resting state in your ovaries. Since your ovaries do not release an egg each month, you cannot get pregnant.