general advice is when in doubt, bang it out. next month you can start temping so you can confirm if and when O day did occur. if you're like me, you ovulated on saturday or sunday, so doing the deed yesterday would have been a good idea, but thursday and friday would have been even more important days.

Both Friday and Saturday were positive, and we had sex on both days. Negative OPK today, didn't have sex. Should we have had sex today?