I am bf'ing and I have an occasional drink. I just follow the aba guidelines.

I never touched a drop until ds's feeds were very consistent and I knew that I knew that it was ok to have one, I always have at least 1 feed of ebm in the freezer too so if something completely out of the ordinary happened and ds wanted a feed there would be one for him.

One huge huge thing I think is to remember it is about standard drinks, not 1 glass, so I would work it out and get out the measuring cup etc when ds's feeds were closer together so I knew I would be ok. Now if I have a wine at night, ds goes about 13hrs between feeds so if I'm drinking something I know out of a cup I have used before I will just pour from memory, knowing I will only have 1 or 2 and have a lot of time for it to leave my system.