Levonorgestrel
"I had the Mirena IUD placed 4 weeks ago. I had heard that the initial placement can be very painful, however, I only felt a very slight ache/pressure when my doc put it in. He even had to manually expand my cervix because it wouldn't open for him at all. But even with that, it wasn't bad. I did bleed quite a bit after insertion because he had to pry everything open basically lol. But really not a bad experience. I rated it at an 8 because I've been bleeding since about day 5 post insertion. It varies from light spotting to full blown period heaviness from day to day (cramps too) and hasn't stopped for 3 weeks. Its quite a mood killer :/ but I'd still choose this over the pill, honestly. The bleeding is the only downside for me."