I took norethisterone from 9-23 december 2011 to delay my period due on december 13th. I bled on 27th december (4 days post stopping tablets). I am not taking any contraception and have been having UPS since mid Nov frequently. A: was the bleed my true period and will i now have another period on usual date (i.e. 34 days from 13th dec) or will i bleed apx 34 days from 27th dec? B: I am trying to work this out as I need to know whether there is possibility of a pregnancy even though I recently bled. I have had UPS 7 times since i commenced the course of norethisterone.