I had a shot of vodka and a glass of wine (spaced 24 hours apart) during my 40+ hour labor in an attempt to space out the contractions so I could get some sleep. Didn't work, and I didn't really consider this "drinking while pg", since it was used with a sort of medical pupose in mind, lol.
My thoughts on drinking for pleasure while pg are conflicted. I tend to feel it's probably not a big deal in moderation, but would still probably abstain if I got pregnant again. But there are so many things that are potentially dangerous -- do you eat non-organic food when you're pg? Drive your car? When it's snowy???!!! Take a walk? Breathe? (lots of toxins and pollutants in the air, folks!)
Just being alive can be dangerous, and I don't believe it has been proven that drinking small amounts will harm the fetus, so
Everyone draws their line at a different place. My friend would remove her ds from his car seat and bf him while her hubby drove (on a long road trip), because she hated having to stop the car for 30 minutes every two hours to nurse. I find that risk unacceptable, but she didn't. My dd was an awful sleeper, and if she fell asleep in the car seat while running errands, I would run into the post office, etc., and leave her in the (locked and running, as it was winter) car. My friend's dh thought this was an unacceptable risk, but I did not. With something like drinking that is not completely clear cut, people are going to come down on different sides, and I can see it both ways. But that said, I would still probably avoid it, just to be safe. Also, I had an aversion to alcohol while pg (except at the very end), so it was no big deal.