Nancy Strumwasser, a high school teacher from Mountain Lakes, New Jersey, always thought she’d have two children. But the layoffs that swept over the U.S. economy around the time her son was born six years ago helped change her mind. Though she and her husband, a market researcher, managed to keep their jobs, she fears they won’t be so fortunate next time. “After we had a kid in 2009, I thought, `This is not happening again,'” says Strumwasser, 41, adding, “I never really felt comfortable about jobs, how solid they can be.” More