Cysts and iud.

happy bunny
Got my check up for my iud recently, went well. I stopped bleeding after 14 days. Which wasn't as bad as I was thinking it was (the bleeding) she stuck a q tip there and checked my strings said they were fine and that she could see them. She also felt for my uterus said I was doing good. I told her I had sex with my husband and he could feel the strings and poking and then I had pain that lasted for a few days and is still kind of lingering. I haven't had rough sex yet and I am scared but we went slow. She said I might have ruptured a cyst. What do you think? And when did you try your old positions and rough sex?