There’s a hushed quiet in the waiting room at a midtown Manhattan fertilization clinic called Reproductive Medical Associates as a dozen women flip through magazines, the glossies a welcome distraction from their scheduled treatments and consultations. But just down the hall, in a window-rimmed corner office with views of Central Park, conversation ping-pongs back and forth as Piraye Yurttas Beim, a scientist and entrepreneur, updates the clinic's co-director on her startup's progress.