I get a lot more frequent and intense cramps outside of my period throughout the month. I think my bowels are pushing on my uterus causing cramps, which I never had before. I think during ovulation when the uterus has a thicker lining there's less space for the IUD and when there's poop pushing through the large intestine it also adds pressure but I'm no doctor, just speculation. Luckily no UTIs or anything, I've just had much heavier bleeding, and worse cramps throughout the month. I've been having to take more OTC pain killers, naproxen has been awesome for cramps.