"i took a pregnancy test on november 27th  because my fiance said i was gaining weight - the result was negative. on the 29th he came in mean so i took a plan b within 16 hours... my period was due on the 12th of december it never came i was 4 days late..so on december 16 i took 5 pregnancy test and found out i was pregnant.. so did it work ?.or was i already pregnant prior to the 27th?"