I had mirena for 2.5 years and never really noticed any low libido. We have 3 kids. I just assumed I was always worn out. I had it removed about a week and a half ago to try for #4 and now I realize something was wrong. I cannot stop thinking about how bad I want my husband now, no matter how tired I am. With that being said, I think after this baby I will look into a copper IUD because I still think an IUD is the way to go for birth control for me.