Bleeding during sex

Hey guys so i keep bleeding during sex and idk why. So last week i had sex and i started to bleed a little bit so i thought it was my period coming but nope my period didn't come for a couple days after. I just had sex and i was bleeding a lot as in my period was starting but i already had it this month. Then i looked on the bed and saw this, this has never happened before. Anyone know what this could possibly be or why its happening.