first off i am a virgin. me and my boyfriend mess around and stuff but never actually had sex. we did try a couple  of times but i would stop. and so after i would take a plan b pill just in case. we did this about three times but this last time it was right after my period ended but apparently i was still spotting. andwho four days later im getting what i believe is brown discharge. but i also read something about implanation bleeding, so im kind of confused? could it be something that happened from the first times? or is it just dried up blood from my last period?