I've read that the Skyla has less hormones than a Mirena and is only a 3 year IUD rather than the original 5. I figure if I'm still not ready at 3 years, or we decide we're done, I'll just get it replaced. But, I'm wondering the the less hormones will make my body react differently. With the Mirena I only had AF once a year, but I was in kind of a fog.

Any experiences?