"hello everyone, i have had my mirena for 5 weeks now and i guess everyone&#039;s body responds to medication differently. mine was inserted due to heavy bleeding and removal of a polyp within my uterus that had caused even more heavy prolonged bleeding.  i have had 3 children so i felt no pain during insertion but mild cramping after insertion that lasted the rest of the evening that i cured with aleve. 3 days after insertion i begin to have mild spotting that only required the use of a panty liner but quickly turned into heavy bleeding that lasted 2 weeks then all of sudden stopped as quickly as it came. i am happy to say no problem since, no side effects, would recommend mirena to my friends &amp; family. i will do it all over again."