birth control
"I didn't rate the Mirena higher just because I haven't had it that long yet.  I read SO MANY horror stories about the pain and what not before I had mine inserted.  It totally freaked me out!  Well, I am 25 years old, have never had a kid, and IT WAS NOT THAT BAD.  My doctor was talking me through everything while she was putting it in.  All I felt was a little pinch followed by what felt like a pretty moderate menstrual cramp.  I simply concentrated on my breathing, and I was fine.  I got a little flushed, and I was a tad bit lightheaded, but it was nothing.  So far, so good.  I've had a little cramping off and on and some spotting, but that's it.  Best of luck if you decide to get it."