hi, im 11 weeks pregnant my LMP was Aug.21,2009 my due date is May.28,2009 i was told the day i concieved on sep.3,2009 i ended my period Aug.25,2009 but i had sex with my ex on Aug.26,2009 is it possible that i can be pregnant by my ex instead of my partner now whom i had sex with aug.30,2009