I had Mirena inserted in Feb 2007. The insertion was quite painful. I had severe cramping accompanied by light spotting for 2 or 3 days. After the cramping went away I didn't have any problems what so ever for several months (other than complaints from my husband of a pinching sensation during sex). I thought the device was wonderful, and regretfully have recommended it to several friends and family members. I had no bleeding at all, no period or spotting, for close to a year. Then one day after sex, when I got up to go to the bathroom I experienced heavy bleeding. The bleeding was so bad I was worried that the Mirena had punctured my uterus or something. I made a doctors appointment to have it checked and they said it was still in place and occasional unexplained bleeding was normal. Although it freaked me out I thought maybe it was a one time thing and said okay. Well, every since that day every time we have sex I spot, sometimes its very light and others quite heavy. Also my husband said he could no longer feel it during sex. I couldn't understand why if it hadn't moved as the doctor told me. The next side effect, well group of side effects, began not long after. I began having nausea, stomach pains, just feeling kind of blah. Then I started gaining weight. I thought "Oh my God, I am pregnant!" I took a pregnancy test and it was negative. I have thought that I was pregnant at least 5 times due to the increase in the nausea and being so emotional. I have gained about 30 pounds over the last 8 months and can not lose it. I have even taken Adipex, a prescription diet medication, no results. I have an appointment to have it taken out the 21st, if it's even still in there. I hope my body and my mind goes back to the pre-Mirena days.