birth control
"I am on my second Mirena IUD.  I placed one in after my second child.  I had migraine level headaches when I was on the pill for the duration of my period. No matter what I took for the headache. Went to sleep with headache and awoke with same headache for 5 of my six day period.  This didn't say I didn't have cramps too.  My ObGyn suggested Mirena.  When it was placed, It was painful.  The rest of that day I had awful cramping.. brutal.. By the next morning... Nothing.  I had no pain.  I had mild cramps for two days-  After that no cramps, no headache, no period, no weight gain, nothing. It has been AWESOME for me both times.  So what you see in reviews comes to this.  Everybody is different... I say its worth the try.  Great!"