I was having the same symptoms,with 2 back to back abnormal papsmears(A typical-something rather) I was refered to a specialist and had a Colposcopy done and found out I had a Retroverted "tipped" uterus/cervix. I now have to have a cone biopsy done in 2 weeks, and go from there. I hope maybe this helps.
I haven't heard or read about bleeding with intercourse as being a common symptom with ovarian cysts. However, I do know that I had terrible pain with sex when I had my ovarian tumor. It was one of my first warning signs that something was not right. It sounds like you have had follow-up, so I am assuming all looked normal in your uterus. I would think the bleeding would indicate a problem in the uterus, cervix or vaginal tissue more than on the ovary. The cramping could definitely be the cyst.
How much blood are you talking about? Are you having light spotting or large amounts? If If it is a light amount of blood, you may have dryness that you aren't noticing, or your partner could be hitting your cervix. I know after my oopherectomy, I had dryness that was causing me bleeding. I did not feel dry at the time of intercourse, but because my vaginal tissues were not getting enough estrogen, they were "chronically" dry. It was remedied by a vaginal estrogen pill. Since you have your ovaries and it isn't likely that you have a severe dryness issue, but even a little could cause small amounts of blood from chafing. You could try some OTC long lasting lubricants just to see if it helps. Or, you could talk to your doctor about trying a prescription vaginal cream or pill. Other than that, I am puzzled by that symptom! I hope you find some answers soon!
Shelly
hi i found your post interesting and i have asked the same question but dident get an answer , as that was how i first noticed something was wrong when i first had sex ,i got this gush of blood and dident have a peroid at the time as i wasent in a stadey realationship so it went unnoticed till i had sex again ,i went to my doc but my smear came back abnormal and i was reffered to a gyno he cheacked it out and said i had cnn1 ,but it when they were examing i bleed again but still dident make anything of it then 2 yrs later i ended up with a dermoid cyst, but i did always feel that was the first sign that something was wrong