New to this

So...I'm more of a dominant personality in my day-to-day but in the bedroom I REALLY like being dominated. My husband and I are coming up on 6 years married and we really haven't discussed this and our sex life took a major dump when we found out we were infertile a few years ago.

There are days when I just tell him no straight out, but I know if he were to just push back with some gentle foreplay I would get in the mood. Once I turn him down he won't try to initiate anything for another week or so. I know I should initiate things more often but I dont like to initiate in obvious ways like "hey let's fuck".

How do you subtly tell your significant other that you're in the mood? How do you let them know you want them to push back a little with foreplay even when you turn them down at first?