I had my youngest daughter in May 2008 and had the Mirena inserted in August 2008. I have had a period every month (which is unusual for me, I usually get them every 2) but not heavy. They seem to be slowing down now though, about every 5 weeks. I don't have acne problems or weight gain problems (I will gain a pound or so right before my period but that seems to go away pretty quickly after my period) but I have had the sexual side effects. I have no sex drive and have trouble climaxing, which was not usually a problem before. And the mood swings...well, that's just not like me to yell at my kids and my husband but that's what's been happening. I sometimes feel like a different person. That part of it has gotten a little better since my daughter started sleeping better around February, but I still notice mood swings that weren't there before.