I had Mirena implanted June 06 after my second child. I patiently waited the three months they say it takes for the side effects to go away... Well it's been two years. I spot frequently and though I do have much lighter periods I never know when I'm going to get my period so that's not very helpful. I used to run like a swiss timepiece! I've since wasted a lot of money on pregnancy tests. I've been unable to lose weight (1600 calories a day + the gym 4 times a week) My primary physician actually tested my thyroid to see if that was the weight problem. The acne is getting worse - on my back - and I've never had skin problems. To top it all off no sex drive and my husband has informed me several times that since the implantation I am psychotic at times. The Mirena makes pms worse not better! It's coming out in 5 days - thank goodness it's time for another baby!