emergency contraception
"Had unprotected sex Sunday morning and got/took the pill the next day. Felt perfectly fine that day but everyday up until today I have been cramping and my breasts have been super tender, but I knew it was normal since it was stated as one of the side effects. But I didn't know it was going to make me get my period so early. I'm supposed to get it two weeks from now but got it today. I'm glad I did because now I have some closure knowing that it worked!"