Mirena sex cramping

I had my mirena for the past 5 years, and a month ago I got it replaced (as they tend to be less effective after 5 years). I had no issues with the first one. Both were inserted in hospital while I was sleeping so no pain.

For the last couple of weeks (when I was allowed to start having sex again) my orgasms make my pelvis cramp, and I’m REALLY crampy after sex. This never happened before. I’m ovulating now, and my nipples have been hard for the past 5 days. I live in Aus and it’s hot here so definitely not the weather. Nipples are hard and sore, and boobs are really sore too. I’ve been too crampy to have sex, so I masturbated just with the clit and my pelvis cramped really bad when I orgasmed.

I’ve never had this before and being Christmas I can’t get a dr appointment til the new year.

Can anyone relate? Could it just be the fresh batch of hormones from the new Mirena IUD? Please help me!