I took plan b like twice and it was horrible. I don't know if in my country there is a difference but it really messed my period for a yeeeeaaaar! For the first time it was good and I fell asleep like a baby, my period wasn't regular anyway but the second time my period was on track before, and after it was like any day now or way too late. Like once it was after 14 days and next month after 40 days (normally I have 29 days cycle). One week after i took a pill was like hell. Cramps like crazy, tiredness, moodiness, sickness all at once. Did any of you felt that too? Any side effekts?