So yesterday there was practically no blood from my period I was on my 6 day the end of my cycle and all day today there was no blood but then I had sex and a crime scene happened! I had all this not brown but fresh bright red blood dripping out of me. It's been 5 hours now and there's light spotting. Was this from me period? Or bleeding from sex? I've never bleed like that before, it was dripping down my thighs 30 minutes afterwards, looked like someone repeatedly stabbed my vagina or something. Or did this happen because I took my birth control 30 minutes late today for the first time?