Bleeding after sex

My husband and I had sex two days ago. We did it from behind and it was kinda painful. I’m assuming he was hitting my cervix. I had some blood right after. Yesterday I had no bleeding. And then this morning there was a little bit more bleeding. It’s super light pink. So I was hopeful of IB. But it seems more likely to be a result of the sex right?

Glow predicts my ovulation date to be tomorrow... however I always seem to ovulate early and the app is never right.