Levonorgestrel
"So I took the pill 10 hours after my little encounter with my best friend. It was my first time and I was shocked that I succumbed to the pressure. I experienced cramps and headaches the whole week after taking the pill. I was worried when my period didn't official start that Monday but I was three days late which was Thursday when I came on. I'm so happy and relieved. This pill works. So just calm down and breathe."