According to First Response Ovulation Test, my dates for ovulation/fertility are  Sunday September 23, 2012 to Thursday September 27, 2012. I had sex on Sept. 17th, 2012. So could I be pregnant that soon?? Or did the sperm die because its past the 3-5 day period?? The date of my last period began on Sept. 11th, 2012, and I missed my first period on Oct. 9th, 2012. Plz help!!!!