How I envy you to have such a supportive husband. Please take advantage of that wonderful opportunity many of us do not have.
You are already obsessing over drink. Thinking about when you can, when you shouldn't or how much is too much? First signs. You are still so young. Don't wake up in twenty years (they go fast believe me) and think "If only".
I always used to say that I never drank at work, never when driving........
Until I had to, to stop the withdrawal and to this day I am so ashamed of that. Please don't let it get that far. Good luck.