Frustrated with husband

This is the second cycle he's flaked on me!! He's too tired tonight to BD and I got a positive opk today. Granted we did it the past 4 days straight but I just don't think that's good enough. And another month will go by and bfn's galore. 
I just feel like he's wasting our precious time, I'm tired too but clearly we have to do it in the fertile week to make a person! 
Next month he isn't getting any ass until I have a positive opk. Then maybe he'll be ready to play ball!