Wow. I am blown away by what everyone has said. I am 27 and got my Mirena put in June 2007. I thought I had hit gold finding a form of BC that didn't require any work on my part and that didn't have side effects. YEAH right! A week after getting it inserted I began having migraines on a daily basis to the point where I had to go and see a specialist. I have gained about 15lbs, my sex drive is almost non existent (when I should be at my peak) and I am crabby all the time. However, the cherry on top of all of this is that my darn period has gotten longer and heavier. I went to see my GYN yesterday only to find out that the Mirena was in the wrong place! HUNCH!! That means it wasn't working and I have a possibility of being pregnant right now. Not cool at all. To say the least I had the darn thing removed and have chosen to go back to the NuvaRing. I never had side effects and it's as easy to use as putting in and taking out a tampon. If you have Mirena I would say get rid of it!