my wife is on 28 day cycle of menstrution..however as the festival was approaching she took primolut-N on 27th day of her cycle and took for 4 days.. after she left taking medicine, she had normal menstruation, 5 days delay to her normal menstruation time. i considered her recent menstruation day as 1 and then had sex on the 6th day...we usually use to have unprotected sex to around 7th day of her cycle. now i just want to ask if there is chance of her getting pregnant as we followed the same rountine but her menstruation time was now shifted 5 days back. i believe her new menstruation day will be now considered as her 1st day..am i right??