Do any of you lovely Ladies have any positive advice?

My SO and I have been trying for a baby for 10 months. We had times where we THOUGHT this was it but ended up just being a later period. I’m not trying to work him to death if you know what I mean😉 It just seems like sex everyday during the fertile window is so tiring for the both of us. When we have sex every other day during the fertile days I seem to miss my actual ovulation date. I just can’t seem to pinpoint it. I’ve tried preseed and I’ve also tried ovulation tests.