Skyla
"I've had the Skyla IUD for 2yrs now and it's been a fantastic experience. I will admit the insertion was very painful. I took 600mg of advil about an hour beforehand and it was still very painful (an 8.5 out of 10 pain wise). The rest of the day I had to stay home because the cramps would come in waves and were severe. After 2-3 days the pain was gone, but I did have bleeding/spotting for about 1-2 months afterward. However, I was on depo provera prior to the IUD and it caused my uterine lining to really thicken up, so there's no telling whether the bleeding was from the IUD or from the depo. Since then my periods come every 2 months or so, and only last about 3-4 days, and I've never once worried about being pregnant. Highly recommend!"