Can I get pregnant 2 days before ovulation?

Long story short I'm basically going to miss the first 2 days of my fertile window. This month I should ovulate on the 15th. Fertile window starts on the 11th. So for the 11th and 12th I won't be bd'ing. But I will be on the 10th. So just Incase ovulation happened early on the 12th, could I still get pregnant?