The shot or Depo-Provera is 97-99.7% effective at preventing pregnancy for 3 months. If you had sex when you were current on your shot (you received the injections on time, every time) you are 97-99.7% protected from pregnancy. If you were late for an injection, or did not get another injection, there is a risk of pregnancy.
Condoms can also be used as a form of birth control. With typical use, the male condom is 85% effective at preventing pregnancy. If used correctly, consistently, and all of the time, the male condom is 98% effective. Teen Clinic also recommends using condoms and dental dams even if you are on a birth control method to help reduce your risk of contracting an STI!
The only way to know if you’re pregnant is to take a pregnancy test 14 days after unprotected sex. Teen Clinic offers free or low-cost pregnancy tests, birth control consultations, and STI screenings! Make an appointment to talk with a health care professional here!