Levonorgestrel
"I just had Skyla inserted this morning and it was not that bad. The procedure was about 2-3mins tops. It felt like a pap with a really bad cramp and then it was over. I took a 600ml iburprofen beforehand. Now I just feel mild cramping. Honestly, I siked myself out so bad thinking it would nearly kill me to be inserted, that I laughed when it was finished. Of course, everyone is different and I have had a child. But all things considered it was it was a simple procedure. Don't read into the horror stories. Being tense during insertion will only make it worse. Everyone is different."