When I was pregnant with Katie, I had nothing to show at 10 weeks. This time around? Yeah...that's about how big I was at 4 months with Katie. I'm one of the few people (maybe it's because I'm just 20?) who gets all excited about showing, so I don't mind a bit!
And as a side, I have not gained any weight during the pregnancy yet, so it really IS a baby bump...not a Mary-Jo-is-getting-fat-and-blaming-the-baby bump. ;)