"Maternity wear has not evolved as much as I'd like. What you're really looking for is comfort and style." McCullough cites London-based line Isabella Oliver and Liz Lange's maternity line ("she does a great job of keeping the clothes accessible") as her favorites. She adds that Diane von Furstenberg tops her list: "I had the pleasure of meeting her [on the Hill] while wearing one of her dresses." McCullough is due April 23.