Good question!!! Well........I think BDing before you O may be better so the sperms will be up there ready and waiting. Cause hte egg lives for I belive 12 hours after ovulation. If you BD too later then you miss out. Timing is crucial

I think I'd just BD today, see what your OPK says tomorrow, but they do say too much can be bad too.
Do you happen to check your cervical mucus? I would recommend checking, especially if you just got 2 +s. (if you don't know what to look for, it looks like egg whites, clear, maybe cloudy and stretchy globby things. I always go off my CM since that shows when you are most fertile. When I see that we always BD ASAP

Good luck girl! Hope this helped!