Once someone has had a hormonal form of birth control (like the Depo shot) for 1 week it can help prevent pregnancy up to 99% (even if ejaculation occurs in the vagina). It takes a full week for the hormones to be integrated into the body and start working.
In order for the Depo Shot to be effective, a person needs to get the shot every 3 months.
The Depo Shot is still effective even if its close to the expiration date. There would be a risk of pregnancy if you missed your next shot and unprotected sex occurred.
Remember, hormonal forms of birth control do not reduce the risk of STIs. Only condoms and dental dams can.
If you need to make an appointment with us, give us a call at 303-442-5160