"it works, i had unprotected sex three days before i started my period. i took the pill about 28 hrs after i had unprotected sex and for the first few days i was panicking, waiting for my period to start since i was supposed to start it. and sure enough i got it, i&#039;ve never been so happy to get my period. the pill didn&#039;t affect me at all, i ate before i took it and went to sleep so i wouldn&#039;t notice the effectiveness. if you&#039;re stressing out like i was, all i can say is keep calm and wait."