hi , i'm 20 and i had unprotected sex , i did a pregnancy test 5 days ago and it came up negative , so the next day i took the emergency contraceptive pill and the chemist said i would have it the next day or latest the day after and i was due for my period 5 days ago but i still have not got my period , so i'm also wondering if my wisdom tooth coming through would have anything to do with my delayed period?