Last year when I got pregnant with my angel we'd been BDing every other day around ovulation. We didn't know when I ovulated because it was my first cycle temping and my first cycle trying. But it worked.
Now, after the loss, we BDed every other day until my OPK came out almost positive. Then we BDed every day for 3 days, so the day before, the day of and the day after. You can see it on my current chart. I don't yet know if that resulted in a pregnancy though. But I have my hopes up

Hope that helps.