Mirena
"First off, I was 25 and childless.  I had tried the pill, but I am a poor forgetful soul, and that was unacceptable. The patch left an icky mark that hurt my skin.  I am married so we are beyond condoms.  My Mirena insertion, a year and a half ago, was somewhat painful, so I took a nap.  I had some cramps for the first two weeks, probably due to getting used to the hormones in the IUS.  My first cycle afterward, the blood seemed thin and only lasted a few days.  I have not had a period since. I really like Mirena because it's easy and I don't have to think about it. My sex drive is still great, and I don't have to pay every month for birth control.  I just wanted to explain all of the side effects I experienced so others could be informed."