Usualy they say you can only get pregnant during ovulation and you ovulate 14 days after the first day of youre period and 14 days before period starts between does days you ovulate 24 to maybe 36 hrs nd can be pregnant so pre-*** can get you pregnant but i dout after youre period womens bodys are diferent and you could be pregnant or can get pregnant but dont stress out so much its most possible you wont get pregnant after youre period and with pre-***
Addendum to above: Unless the unprotected sex was over 72 hours ago.
I believe technically you can, though I also believe that it's not all too common for pre-*** to contain sperm. I would consider seeing your doctor about the morning-after pill to be on the safe side. Unless it's now past the timeframe for the pill.