"In a world where zygotes need preschool applications and the wrong stroller can label you an unfit mother, pregnant professionals turn to Katie Johnson, San Francisco's most prestigious baby planner, long before their baby bumps become obvious under their Armani suits. But setting up her clients with the latest must-have baby gadgets, top-notch doulas, and most desirable playgroups is just the start. For the anxious mommies who have her on speed...