My Mum was at a wedding when she was quite pg with me.

She said something about how in 6 weeks she would have her hands full - they asked why and she said "when the baby comes". At that point surely even the most stupid person would stop and think but no - this one went straight on with "oh, I suppose it isn't too late to back out - I hear so many horror stroies about adoption"

So, clearly, she didn't even appear to be pregnant