Hey I'm so confused!!! I was on the deprovera shot a couple years back and got off of it. I just resently about 4 months ago took it again. I didn't go back to get it again when I was supposed to. I also just found out I have HPV. I said that to say I know that the depo makes you bleed irregularly but I never did what I'm doing now. I know how long it can stay in your system and stil prevent pregnancy but the last week me an dude were having sex unprotected I was on this other medicine that can casue my birth control not to work. That was like 2 or 3 weeks ago and now when my regular period is supposed to come I'm only lightly bleeding, like only when I wipe, and it's been like this for like six days. I don't knowif its implantation bleeding or what. My period has never been this light and I'm not having any cramps or anything but I have felt "funny" lately. I don't think it's the deprovera because it has always made me bleed more not less. What do you think it is?