Bleeding after sex??

Jess

My previous partner and I had sex multiple times a day, no bleeding. My new one and I have 1-2x a week. This past month anytime we have sex I have some mild bleeding. Except last night it was a lot and bright red. No pain, no cramps but this morning I was still bleeding. I’m on oral birth control and have been taking the pill for about a year now. Ive been on it for years prior but took a year break. Now I’m about 11 months in. I took the pill 3 hours earlier yesterday due to scheduling conflict and sometimes I notice my period starts if I’m just a couple hours late on taking the pill. It’s never been so time sensitive before. Anyone know what’s going on??