question: Hi.. I am Arshita... I am a PCOD and hypothyroidism patient.. For last one year, i have been quite regular on menstruation front, though not on the exact dates.  It so happend that on the last day of my periods in January 2011, my boyfriend and I had protected sex.  So far I havent had my periods, but i do have all the symptoms of periods going on since February.  Please let me know if I do stand any chance of pregnancy?