"i&#039;ve had mirena for about six months now. i had it inserted six weeks after i had my baby and it was not painful at all. the doctor explained i would have a light period the majority of the month for the first three months and then it would go to normal. i had my period three weeks out of the month very very light for approx four months. yes it was annoying. the past two months it went back to normal. i eat clean and exercise daily i have lost about 20lbs. i do get bad cramping once in awhile in that region especially if i lay in certain positions for a long period of time. but that could just be post pregnancy.  i&#039;m overall a happy calm person and my mood hasn&#039;t changed one bit since i started. overall i recommend mirena."