Chances of getting pregnant?

Brandy • 21. Baylor. Child Development. TTC #1. Hypothyroidism & Hashimoto`s.
So my fertile window was the 8-14. I ovulated on the 13th. We had sex everyday (mostly cause we like having sex) from the 7-12. We used Preseed every time. We would've had sex on the 13th but he had to fly back to Cali. Anyways, what are my chances of getting pregnant since we had sex the day before I ovulated? Has anyone gotten pregnant by having sex the day before ovulation?