i'm not sure if you're saying your depo shot expired 3 months ago or if the last time you had a booster was 3 months ago. if your depo shot expired 3 months ago then you can absolutely get pregnant by unprotected sex. the depo shot is not a permanent solution. depo-provera birth control lasts roughly 14 weeks in a woman's system before being completely ineffective but the shot must be received every 12 weeks to maintain full protection.
i stop taking the depo shot three months ago i've been having unprotected sex can i still get pregnant?