I had sex today after three months, last time this happened to me as well but I thought it was my period. It was a bit difficult for him to penetrate me, and immediately after he did, I started bleeding a lot. The blood was bright red. I have been diagnosed before with polycystic ovaries, and a year ago I had some bleeding, but very small, after rough sex.
Do you think this might be a uterine fibroid or something more serious? I will visit a gynecologist, but I want to be prepared for all options.

Thank you in advance