I'm 17 years of age and I was on the depo injection last October I stopped getting it in October because it came off the market..I have not being on any contraception since then but recently in the last two-three months I have been getting very strong pains in my vagina and back and feeling always tierd..But this month it has been a very strong bleeding and pains I have looked it up many times and it says many things like miscarriage but I don't know if I was pregnant but I am sexual active..I really don't know what to do?