i don't know why i've been bleeding with my birth control...i've been on them for almost 3 years now and switched a couple times, but the one i'm on now i've been on for about 6 months and i haven't skipped a pill on accident for about two weeks...and i'm experiencing some irregular bleeding. i do want to note that my boyfriend and i do have unprotected sex and he does come inside me...but i don't think i could be pregnant...i'm way too small and don't have 7% body fat to carry a baby... does anyone know what it could be from?