Look for some advice from those of ya that drink

How TF did you make a reasonable excuse for why you all of a sudden were no longer drinking when you became pregnant? I just got my BFP last night, going in for blood work tomorrow to determine about how far I might be - periods are very irregular. And I'm supposed to drink with one of my girlfriends on Saturday. She will without a doubt question it. I am not an alcoholic by any means. My husband and I are just HUGE beer snobs and we even brew our own beer!!! I usually pick two months (January and usually September) as "dry" months where I go super super clean to restart my body. So luckily that is next month but what is my excuse for this weekend??? HELP.