Hilary Duff goes out of her way to conceal her growing baby bump. I think celebrities do this to throw us off on the due date of the baby. They always say they are less farther along so when we expect their bundle of joy in October for example, it will actually show up in September. It's been done for ages.
Anyway, this time Hilary used her adorable little chihuahua to cover up with which wouldn't be very effective if she didn't have it wrapped up in a blankie. That tiny little dog couldn't even block out one of her boobs!