are pregnant?
Happened to me on Saturday. Saw someone I worked with until March this year and she asked me if I was having another baby and when was it due. I am not pregnant.
It really pissed me off TBH - you might think 'Oh, she looks a big pregnant' but unless you are 100% sure you never ask right? It's just downright rude.
Was quite funny watching her try and carry talking to me as normal once I'd told her I wasn't expecting though!