Drinking while pregnant?

This weekend we went to a cookout, I happen to notice the girl at the table behind me was drinking. Her boyfriend had recently posted that they were going to welcome baby #2. I didn’t say anything because I’ve had a miscarriage an would never want to upset someone in that situation. Anyways the night goes on an she then tells me fiancé cousin that she’s pregnant but she was so early the ultrasound only confirmed a sac. At this point my in-law is furious, (its her campsite) she pulls her mother off to the side an tells her that she has to either stop drinking or leave because she will not have that here. So I’m just curious to know thoughts on this. I personally would/could ever knowingly drink while being pregnant Thoughts???

I deleted my old post not realizing since by habit I posted anonymously an could change it sorry guys.