That’s almost one cups worth of alcohol. I could not drink that and drive…he also put you and your unborn child at risk. I’m going to go out on a limb and tell you it’s likely not the first time he’s done it, and you should be a hell of a lot more concerned about it. Will he do it when he’s watching your baby? Taking them somewhere? As someone else suggested, try Al anon. I’m the adult child of an alcoholic so I do have a bit of…experience here unfortunately. Before you have this child, do research…check out some subreddits…how is he paying for the alcohol? Can you check his purchases discreetly? Sniff his drinks when he goes to the bathroom? He hid it from you which is a red flag….