I had the Mirena for like 5 months. First two days I got cramps. Then got my period for a week. After period was gone I spotted for a month or so. Got it removed bc it bothered my husband, other than that I didn't have any problems with it
I got the mirena almost 5 years ago, when I first got it I didn't get my period for 6 months then after I started getting it but I didn't bleed as heavier as usual, it's being a year that I haven't got my period and I just can't wait until I take this crap off.... How's the mirena working for you?