I am not too sure. I know painful intercourse is along with a few more symp. bloted feeling, nausea, diarea,
hope this helps
Could be cervical polyps too. Id get a vaginal ultrasound if it keeps happening. Im not a Doc but id be somewhat concerned. I don't know if BC pills cause that. Maybe you could find more info on the Internet about that. I don't think its a sign of ovarian cancer, it could be from many many other things.