I'm sorry to rain on your parade, but if you look at the eat wisely book, they recommend that you spend no more than 14 points per week on sugary food and alcohol.
What I would say is, if it's not affecting your weightloss right now, then keep going as you are, but if you find that it's starting to slow down or stop, then perhaps you should try cutting down on the alcohol.
I remember going to a RC class a few years ago, and the leader had a degree in sports science (or something like that)...anyway, getting to the point, she told us that when you drink a lot of alcohol, your liver prioritises cleansing that from your system and sidelines digesting your food for up to 3 days, depending on how much you drink, and during that time, all of the food you eat is automatically stored as fat!.
The best thing about the points plan is that it allows you to treat yourself in moderation to your favourite things. One or 2 drinks a night should be ok, but any more than that may be hindering your weightloss.
Oh dear, I sound terribly preachy, sorry about that, but I just wanted to let you know the information I was given.
Good luck with the weightloss!