"i&#039;ve had the mirena for two years and it has not been that great to me. it was not always terrible. the first 6-8 months were awesome. then i started to gain weight, developed moderately severe acne, and after a year i started having heavier periods than before. i didn&#039;t flow on a normal schedule either. i also had more intense cramping and mood swings. i&#039;m finally going to the doctor, because the benefits no longer outweigh the side effects."