"well i had unprotected sex and an hour later i took the plan b pill, i looked at reviews online of women saying they got pregnant even after they took plan b, but they also didn&#039;t mention how long after their incident they took it which was probably not soon enough. plan b worked for me i got my period 2 weeks and a day early and i can&#039;t be more happy. i do recommend taking plan b the day of the incident or even the day after but i felt better by taking it the day of! the best way is to not have unprotected sex stops you from wondering and worrying! hope i was helpful!"