I have been on the Mirena IUD for about 4 years since the birth of my only child. I have not had a period since the second month I had the implant placed. I do not have ANY spotting. I do not have ANY cramping. I do not have ANY PMS symptoms at all. However, I have noticed a slow and steady weight gain. Dramatic increase in the size of my breasts (from a B-cup to a D-cup.) As well as, a dramatic decrease in my normally enormous sex-drive. Recently though, in just the past 2 weeks my low sex-drive has increased greatly, I've had more headaches and am very tired. Prior to my pregnancy with my daughter I stopped taking the birth control pill (which I had been taking for close to 10 years.) My sex-drive was insane...my husband and I were like rabbits....I was warned it could take up to a year after stopping the pill to get pregnant...I was knocked up in less than 2 weeks. Throughout my entire pregnancy I was constantly "in the mood." I some how feel like I'm experiencing the same symptoms again right now! I know that the Mirena implant is still in place so the only thing I can figure is that the build up of the hormones from the implant are beginning to mimic the symptoms of being pregnant... Since I never have a period anymore though I'm concerned that I would have no idea if I really WAS pregnant though! I'm not sure what I should do... I don't want anymore child but I'm not ready to have my tubes tied and my husband won't get fixed...I should still have a year left on this IUD -that I paid a LOT of money for...what should I do?