I have been on Mirena since March 2015 I have gotten my period every time I'm supposed too it lasts around 12 days. last month it was heavier then usually but this month I have not gotten it at all and not a sign of getting it ... I'm only 3 days late but I've not been feeling right I've lost my appetite and surrten things make me sick to my stumac I have not vomited but I just feel weird. Once I do eat I eat a lot and then I don't want to eat for a while... I've heard that it is possible to get pregnant on the iud Mirana... & im really not sure why i am not feeling right. I am either wired and barely able to sleep or I sleep and feel like I need more sleep. I just don't get it!! I have had unprotected sex multiple times... Help!