"i am 38 years old with two kids ages 9 and 11.  i had my mirena placed one week ago and so far have had no side effects at all.  i had been taking seasonale birth control pills without a break after the third month and not having a period for the past 4 years.  i am in the military and deploying without having to worry about taking along 6 months worth of birth control and menstruation products is a huge relief.  i had some cramping after the insertion but took two otc pain relievers and haven&#039;t felt anything since.  i&#039;ve run miles with it in, i&#039;ve done push-ups and sit-ups and not felt a thing.  for me this has been a completely great experience and my husband hasn&#039;t noticed any difference when we have intercourse."