dlphn -
I've had that happen before, too. I think it also had something to do with the type of clothes I used to wear - very lose fitting and (to be honest) somewhat maternity looking, to "hide" my belly.
I do feel sorry for people in that situation, though. I really do. Because I think they're caught in a catch-22. If someone were really pregnant - visibly so - and they ignored it, then that person would get her feelings hurt. I've seen it on message boards before where women have asked "why didn't she say anything or congratulate me on being pregnant?" and they were seriously upset about it.
OTOH, if the person isn't pregnant then the person risks offending.
Honestly I think there are a lot of situations where the poor innocent person on the other side is just caught inbetween a rock and a hard place.
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