Sex schedule

Nicole • Married to my best friend. We have been TTC for 5 years.
How do you get on a schedule with your husband for sex. We seem to always be the opposite. When he wants to have sex I am either asleep or not in the mood or just tired. And when I I'm in the mood he is not at all does anybody else have these problems how do you get on a schedule to where you both want to do it.