Levonorgestrel
"Well just sharing my experience. I had unprotected sex so  I went and got the plan b pill 9 hours later. I didn't eat anything I just took it then immediately I felt tired I took a nap. As a week or two weeks went by my stomach became very bloated and today I just got my period but still my breasts are bigger and my stomach is still very bloated. I haven't had any severe side effects from it and this was my very first time taking it. I hope the bloating will go away soon bc basically it looks like I'm pregnant but I have my period so maybe I'll take a test later on in the month just to make sure. But the pill was pretty decent I didn't get sick at all."