Hello, ive been on depo provera (medroxyprogesterone) for over 2 years now. since i was 14, i'm 16 now almost 17. recently my boyfriend came in me while we were having unprotected sex. is it still possible i can get pregnant?

Doubtful: but not impossible. Not all forms of contraception are 100% effective. If you are uncertain- do a home pregnancy test.

Pregnant any time: Besides abstinence, no other birth control method is 100%. The chance is small, but you can get pregnant while on the pills, iud, Depo-Provera injections etc. In general, the longer you are on the injections, the less likely you wil get pregnant--but still there is a small chance. Also, being 17, chance of pregnancy is higher compare to someone, say 37... also, u should check for STDs.. good luck