On Monday, struggling tech giant Yahoo announced it was hiring Marissa Mayer as chief executive, the company’s fifth leader in five years. But there was even more news to come. The 37-year-old Mayer, a highly respected former Google executive, is pregnant — and the board knew all about it when it appointed her. When asked about maternity leave, Mayer said: "My maternity leave will be a few weeks long, and I’ll work throughout it." We polled some area companies to find out policies in our region for leave after a baby is born. What is your company's policy?