"i don&#039;t have anything bad to really say about mirena, i don&#039;t have periods i don&#039;t have mood swings or any type of side effects when it was first put in i only lightly cramped that day and that was it. the only thing that i have had an issue with that most women wouldn&#039;t mind is i have lost weight. so far i have lost 27 pounds i have had it in for 10 months now and went from a size 12 to a size 2. "