"i&#039;ve had my mirena for 5 weeks.  i am 24 yo and childless. i was on the nuvaring before but i had gained some body fat in my lower abdominals and opted out of it. (i&#039;m a fitness model) i had it inserted roughly two days before i was supposed to have my regular period. insertion was extremely painful, i cramped very bad and i fainted. i woke in a cold sweat. extremely nauseous, dizzy. i cramped off and on for about a week and had heavy bleeding for 9 days.  it went away.  occasionally after sex, i will cramp for a few seconds but nothing serious.  i had a light period 4 weeks later for two days.  (used to have heavy ones for 4-5 days).  acne during period and some tender breasts.  symptoms seem to be diminishing.  will keep for the term!"