Levonorgestrel
"I just got my skyla in yesterday so this rating is only for the insertion process itself. I have been on the pill for the past year and a half but I wasn't very good at taking it on time and correctly so my doctor and I decided to try an IUD. As I'm 18 and have never had kids the skyla it was. I'm not going to lie I tend to overestimate how much something is going to hurt and end up being fine but unfortunately that wasn't the case for this. The pain was definitely there and actually hurt more than I thought it would. I couldn't stand up for about ten minutes after the insertion and driving home was a a nightmare. I had to pull over because my vision was blurry. Be cautious with this. Hoping the good outweighs the bad."