Does anyone else feel like maybe they don't have unexplained fertility that maybe the timing is just off?

When you go back and look at BD 14 days before AF I only maybe BD 3 out of 10 months correctly and 2 of the months were a day early and only 1 of 10 months was exactly 14 days before AF.

For example, in July I got my period on Friday and we BD two Fridays before that. Do I have this right?

Also if you get your period after 5 pm then what?

I get so mad at myself and my husband for. It trying past my ovulation window or when I think it is. Anyone else with me?