"mirena has been the best birth control i&#039;ve tried and i&#039;ve tried them all! yes insertion was painful and i did have a decently long time (about 3 months) where i would spot or bleed but after having it for 4 years now, i can honestly say it&#039;s so worth it. i have had no weight or mood changes, period completely stopped after the three month bleeding and ever since i&#039;ve nearly forgot about it. my skin has always been oily so i can&#039;t blame it for that and i haven&#039;t experienced cramping, my ex said he could feel it but i think it was just because i had it inserted partway into our relationship and he was paranoid because my current boyfriend says he doesn&#039;t notice anything abnormal. i can&#039;t wait to get my new one!"