Menstrual cup help!

Ive been using my cup (it’s the flex cup) for about 4or5 months now. I love everything about it so far. But today I put it in, and I immediately felt a lot of pressure on my butthole. TMI sorry lol. But it felt like I kept getting cramps. I didn’t associate it with the cup at first. I just thought I was getting cramps back there. But I woke up from my nap and the pressure was still there.

I went to the bathroom and took the cup out, and the feeling was gone immediately. Did I maybe just put my cup in wrong? Or at a awkward angle? Too far back?

Thanks!😊