Levonorgestrel
birth control
"I got skyla four months ago and I'm just now having my first period. It is lasting longer than normal and the cramps are ten times worst. Before this month, I would just have cramps but no actual bleeding. Before this I have had no problems. Of course insertion was painful and there is a lot of cramping, but the cramps should improve after a couple of months. My boyfriend and I stopped using condoms  after I got skyla and I haven't gotten pregnant so it's very effective."