I have been using menstrual cups for about a year now. I started with the ruby cup but it made my cramps worse, so I switched to the sckoon cup (supposedly one of the softest on the market) and they got slightly less noticeable. I still feel more crampy than when I am not wearing the cup, but it is not unbearable. It opens properly and I can get it in and out with no problems.
What IS unbearable, however, is that since about two months into using the cup, sex has been painful for me, particularly deeper penetration. Even my last pap smear was unbearably painful when it's normally no big deal. The gynecologist has already ruled out any infection/cysts/endometriosis and she honestly was not sure what the problem is. She said my cervix just looked irritated. She doubted it was the cup causing this problem, but I am worried because of the timing of when the pain started and the slight cramping when the cup is in. It's ruining any enjoyment of sex and I am worried about damaging my body. Has anyone else had this problem? What could I be doing wrong? Should I try a different cup brand?