"i&#039;m 23 years old and have had my mirena for more than 2 years and i am in love with it. insertion hurt for a few seconds but it was quick. i recommend taking a pain pill beforehand.  an hour after insertion, i went to class. i was a little tender for a couple of hours but i wasn&#039;t uncomfortable, i wasn&#039;t in pain and i couldn&#039;t feel the mirena. that month i had a light period for 2 weeks and i had some light spotting during the second month after insertion. i have been period-free since then. it&#039;s so liberating. all i have to do is have my doctor check its strings every year. sex is comfortable and pain-free and i feel great. i haven&#039;t suffered from any negative side effects. i will probably get another one in 3 years."