I have the Mirena iud in place and I have been having unprotected sex with my fiancé. I don’t know if any of that contributes to my situation but I have had pain in my lower abdomen, like my uterus, almost like a stabbing pain or like it is falling out. Sometimes it’s so bad I can’t even walk. I took a pregnancy test and it came out negative. I’ve been experiencing pelvic pain for the last few months but not this intense. When I went to the doctor she said it could be a cyst. Any thoughts?