Now that I think about it, it is illegal to give minors alcohol and cigarettes. A fetus is a minor.
Therefore, why do we need a 'new law' when this one is already on the books.
Now, there's an interesting question. You're in a restaurant, you see a woman (whom you don't know), who appears to be pregnant, having a glass of white wine. Or a cigarette. Or just sitting at a smoky end of the room.
What, if anything, would you do?