"i&#039;ve had mirena for a little over a year and absolutely love it. i&#039;m in my early 20s and was hesitant to start other forms of birth control because it is hard for me to remember to take pills and i was worried about the weight gain. i&#039;ve had no weight gain on mirena and no extremely noticeable side effects. it was slightly painful to get inserted and i bled lightly for a few months afterwards but once that stopped it&#039;s been great. i tend to have spotting or a light period for one or two days every couple months but that&#039;s it.  it&#039;s great and so convenient."