I must say that I am guilty of asking that question. I was a server many ages ago and this customer- that was a regular- is standing up and she kept rubbing her stomach (normal size girl, wasn't any bigger than usual or anything) so I asked her "are you pregnant???!!" And she quickly said "no way" I apologize and I was sooo embarrass! I told her that I saw her rubbing her belly so I just thought she was... After that time I never, ever ask that question, even if they look 9 months pregnant!!!!!
It's very funny now, because I am pregnant and I see people looking at my belly and smiling but they don't ask anything! Haha it's almost like its uncomfortable for them to see me like that! Lol
Anyhow... Back to you
Don't take it personal. You know you look amazing