Jourdan Dunn walks for Jean Paul Gaultier.

Model/mom-to-be Jourdan Dunn on Jean Paul Gaultier's spring runway at Paris Fashion Week. Photo: Pierre Verdy, AFP/Getty Images

Gone are the days when expectant mothers are expected to sit on the sidelines.

We previously reported that pregnant 19-year-old model Jourdan Dunn's agency had included her in its fashion show packages. But rumors of Dunn hitting the runway with baby-on-board were quickly shot down.

So, we were pleasantly surprised to see the British beauty on Jean Paul Gaultier's Spring 2010 catwalk in Paris.

And rather than try to conceal her pregnancy, Gaultier instead called attention to the growing baby bump -- dressing her stomach in matching circular banding to that of her silky brown cone bra.

Dunn isn't the only model passing down her gorgeous genes. These campaign girls are expecting too.