Based on a 28 day cycle for your period you would have been most fertile between Sunday, June 8, 2008 to Friday, June 13, 2008. But you need to have sex no more then 5 days before your exact ovulation date to get pregnant (Sperm can only live up to 5 day's in a woman's uterus). You ovulation date would have been June 11th or 12th because an unfertilized egg can only survive 24 hours after leaving you ovary so ovulation dates are usually the day before your last fertile day. And being that you had sex with Elijah exactly 5 day's before your expected ovulation date, Jacob more then likely is not the father and Elijah would be. I hope everything turns out ok and you wont be able to say for sure until a paternity test is done but the odds are pointing in favor of Elijah being your baby's father. Good Luck hun and don't stress to much it's not good for you or your lil one