Early period or implantation?

Victoria

I wiped today and this is what happened. Slightest cramps. When I wipe there isn't anymore only happened one.

Body gearing up for period or could I be pregnant? Period is in 3 days. We had sex all through my fertile window without protection. He didn't cum in me but he wiped himself off and then stuck it back in everytime we had sex and multiple times during sex.