atthewelles the girl you worked with reminded me of a colleague of mine.
We were pregnant at around the same time, but she had already found out the sex of her baby, and named him, months before he was born, and told everyone all about it.
We didn't do that, so when DS was born and I got in touch with work to tell them about him, our colleagues did discuss it a bit more than they had with our colleague's baby. You know the sort of thing "Fake has had her baby." "Oh, what did she have? What did she call him? Oh, lovely" etc.
That didn't happen really with our other colleague because it was just "Helen's had Josh." "Oh, good."
Helen was apparently quite upset that people were 'more excited' about my baby than hers, but I don't think they were, just that they knew all the things people normally ask about in advance of her son's birth and they didn't with mine.
It didn't help that in the run up to our maternity leave starting I did get quite a lot of "not long now until you find out what you're having" and "ooh, if it's a girl you can call her after me" etc. Which they couldn't do so much with Helen because we all knew what she was having. She did get a few "not long now's" etc but there wasn't the same banter about names and sex etc with her because she'd already found out and told everyone.