"i am 20 years old and i had my mirena inserted a month ago and to me personally the insertion was extremely painful. it was unlike any other painful cramp i have ever felt before, but the pain did not last for too long and after it was inserted i was fine and didn&#039;t really cramp much after. that being said, i have had no children and did not take my advil as advised from the nurse prior to my appointment. other than that i have only had light spotting and it has made my period lighter. mirena is supposed to decrease your sex drive but honestly it has increased mine and my partner and i love it! i hope it stays this way and the bleeding/spotting stops soon!"