i also got mine in november 2006. i had no problems with it, i actually loved it. i only had one "period" between the time i had it put in and february. on february 10, i had what i think was a second "period" which i had really bad abdominal pain and cramping. i continued to hurt nearly nonstop until february 22, when it came out. i have had pain in my right pelvic area ever since the 10th. only after i started having so much pain with it, did i start to put my headaches and mood swings in conjunction with the mirena. i did not lose as much weight this time after i had it put in as i did with my last delivery, after which i did not use any bc. since it has come out, i have felt so much better. my headaches have just about gone, they are not present everyday like they were. now all i have is tiredness and mood swings and headaches that are associated with pregnancy. i also had really bad oily skin and hair with the mirena and that has also gone away since i got pregnant. i have heard of others on here who have had huge weight gain while using mirena, keep in mind that youre dr will probalby tell you that it has nothing to do with the mirena. we know different.