Final answer:
Depo-Provera is a birth control method administered by injection. Shots of progestin are given every 3 months to prevent ovulation and change the cervical environment, thus reducing the likelihood of pregnancy.
Step-by-step explanation:
Depo-Provera is administered by injection. This birth control method involves receiving shots of the hormone progestin in the buttocks or arm every 3 months, and there is also a new type that is injected under the skin. Depo-Provera works by stopping the ovaries from releasing an egg in most women and also causes changes in the cervix, making it more difficult for sperm to join with the egg. Hormonal methods like Depo-Provera are a type of contraception that employs synthetic hormones to prevent ovulation and have different administration routes, which could include oral pills, skin patches, injections, and implants.