what do yall know about this form of birth control? my girlfriend is on it, she just got her second one...and i know she is for sure, but anyways...how reliable is it and shit, cuz i been nuttin up in there without a condom lately but now i wanna break up with her...but i dont wanna break up with her if shes pregnant you feel me. but if shes on that shot than she prolly aint right. i need some feedback about this damn shot. thanks.