i am going to play devil's advocate and side with freshstart57...
by september 4th you could be more than a month alcohol-free... and it will be amazing.
that being said you are doing the right things by admitting to your problem and going to see your doc, and communicating with your husband.
yet, using stress as an excuse to drink is one of the oldest tricks in the alcoholic's book
... stress will always be there and the closer you'll get to you pre-set date, the more stressful it will become.
i say quit now. today. ... what's the worst that's going to happen? actually nothing. only good and positive is going to happen.
the decision is yours and only yours to make, of course. i'm just hoping that you'll put that drink down sooner than later. try not to drink today. then do the same the day after, and one more day. and google "avrt crash course". see where that takes you.