While my fiancé and I were having sex, he noticed I was bleeding. When we finished, we washed up and I noticed I was in fact bleeding but it's very light. Is this my period coming early, or implantation bleeding? It's very red like my period but it's very light. My period isn't supposed to start for 4 days. I am on birth control but everyone in my family have gotten pregnant while on birth control. I even did a few years back (which ended in miscarriage bc of the IUD) but I have never experienced implantation bleeding like this. the IB I experienced was so light, it was discharge slightly pink, this isn't my discharge and it's bright red. need advice ladies. thanks