"hello everyone,  i got mirena inserted 4 years ago as of this nov 2016. it&#039;s been great. my period before mirena was 9 days, set to a stopwatch, heavy, with cramping that made me vomit and pass out for several hours on a 28 day cycle. it was impending doom and very easy to track. now my period is very sporadic. i just started a &quot;cycle&quot; 2 days ago with terror cramps and heavy flow,  but last time i had this kind of period was 8 months ago. in between has been spotting or nothing. the negative reviews are really negative and the positive reviews are really positive.  everyone has a different body and it&#039;s hard to go off of reviews and see  how yours will respond.  do your research and understand the risks. it was the best choice i&#039;ve made %u263a"