Levonorgestrel
"I am only about 4 weeks in since getting the mirena inserted. My personal experience with insertion was okay. It was quite pinchy, but only for a short few seconds. I found the more relaxed I was the better I could handle the discomfort. Right after having it inserted, I felt somewhat extreme cramping which subsided within a minute. The next two days following I had moderate period like cramps which made me quite irritable. The most annoying part is that I haven't stopped bleeding since insertion.. people say "spotting" but it's a consistent flow of blood.. not extremely heavy, but not extremely light either. It's rather annoying.because blood doesn't smell great and how is anyone supposed to enjoy their sex life when they're bleeding!?!?!?"