Still a Chance?

My opk just popped positive today which is soo exciting since I haven't been ovulating for months! I'm on 1500mg of Metformin for my PCOS. Hubby and I had a fight last night (probably because of my hormones) and didn't BD. He's a firefighter who works 24 shifts and, of course, he's working until tomorrow night. Ugh!! We BD'd 3 days ago and he's home tomorrow night. Do we still have a chance of catching this egg if we BD tomorrow and Friday?! (He works again on Thurs🙁)