Levonorgestrel
"Got the Mirena put in the morning. I was really sceptical about getting it done after all the reviews I had read, but after talking to my Dr about it, I decided to give it a shot. The insertion wasn't nearly as bad as I had pysched myself up for, although, of course; everyone takes "pain" differently. For me, it felt like that weird pressure you feel when you push too hard on your belly button. I've had mild cramping and slight bleeding throughout the day, but its nothing as bad as a regular period cramp. If anything, they feel less then a period cramp. Hopefully it continues like this, cause its all tolerable."