Did you ever get asked for a doctor's note when flying while visibly pregnant? I'm almost 30 weeks and flying this weekend. I'm not worried about the flights-- they are pretty short and I've been feeling good, but it just occurred to me, should I have gotten a note from my doctor? I'm carrying somewhat small, so I really don't think anyone would mistake me for 36 weeks plus (which is most airlines' cut off point), but does anyone have experience where they were asked for documentation?

Flying Southwest and Delta, if that matters.