I have been on mirena for about 3 months now. Iam 21 years old, and my period has seemed to stop altogether. That worries me because I don't know if the mirena is working right or if it isn't. It seems like it is very normal to lose your period though, from reading many of the posted messages. I am wondering about the moodiness thing. The last couple of weeks I have been extremely moody, easily angered, and I'm wondering if that really is my body's reaction to the mirena? Also, I have broke out into a pretty bad case of acne. Has anyone found anything to treat the Acne caused by mirena?