"i&#039;ve had mirena for almost 2 years now. i&#039;m 20 years old and never have had children. the insertion of mirena was pretty painful i must say, and the cramping hours afterwords was terrible. i was in a lot of pain for about 2 months. but after that all the cramping went away and now i can&#039;t even tell that i have it. i haven&#039;t had a period in over a year, i never spot, no mood swings, no bloating, no loss in sex drive, the only bad thing i would say is i&#039;ve experienced some hair loss. but other then that i love mirena. best form of birth control out there i would have to say."