You had a period and a lot of time between guys. If you can't settle down about this, you could get a DNA test done with one or both of them, but it's kind of going to seem ridiculous to them since none of the facts point to the first guy.
I am just really nervous since its been so long
Yes September 8 was the last time I had sex with my ex @annie
For a due date of July 1, ovulation would have been October 8. Even if you had a really late ultrasound that gave you the due date, and even if the baby was late, the dates don't stretch back to September 8. If September 8 was the last time you had sex with your ex, he is not the dad.