Mirena
"I absolutely love the Mirena.  Afer getting with my lifepartner 8 years ago I opted for the Mirena because he had custody of his two daughters and I had custody of my 2 sons.  It has worked great, no periods (unless months up to it being switched), comfortable, and keeps my hormones where they need to be, constant due to my bipolar.  I am up for my 3rd round in August and wish I could just do it now.  I still use it even though my life partner is cut... just in case!  We have enough.  LOL  Give it a try.  I love it!"