A.M.
Hi B.,
I also had issues with hormonal BC, including the Mirena IUD. I use the other IUD available, called Paraguard. It does not use hormones, and works for up to 10 years! Most doctors don't even mention it when you discuss BC options, and automatically offer only Mirena - so ask if you're interested! I've had no side effects at all - NONE. In the past year of use, I've had one period which was a day longer and more crampy than usual, but that's truly the only thing I've noticed. Because there's no hormones, there's no breakthrough bleeding. I'm a big fan. Good luck as you explore your options.
A.