4w & 5d pregnant (alcohol consumption)

Last night my husband and I went out to our local bar for supper. Keep in mind it's a very small town (under 500 people). One of the locals bought us each a drink. We aren't telling anyone just yet so I accepted a drink and took 4 sips of it over the course of 1.5 hours. My husband discreatly drank the rest when we didnt think people were paying attention. I know we aren't suppose to have any alcohol at all but I couldn't ask the bartender to give me a fake drink as it was a family member working. Long story short is a few sips here or there harmful to the baby until we tell people at 10 weeks?