After a surgery to remove a particularly large cyst a few years ago (and the fallopian tube it was on), i was told by my gynecologist that it would be regular to miss a period here or there. So when i missed a perod recently, i wasn't very alarmed. Then a second month passed with only very light spotting. This urged my to take a home pregnancy test, all of which have come back negative. Now, i have sharp pelvic pain and aching and have been bleeding for over a week. First brown blood and recently red, both with significant amounts of clots. I've been trying to set up an appointment with my doctor and have had no luck, their soonest opening is in a few weeks..
What could be causing this?