"i have been on implanon for almost two years. for the first year i wasn&#039;t with anyone and the implant worked great. but back in july i started bleeding hard and i had never had this before. i have had a weight gain of 20lbs and can&#039;t seem to work it off. i have been moody and very sleepy some times for no reason. there are some days that i sleep all day and all night. my obgyn says that it has nothing to do with the implant but i haven&#039;t slept like that since i have had it removed."