ROCKWALL — Cathy Samford, a volleyball coach and science teacher, was fired from Heritage Christian Academy for getting pregnant and not being married, the school acknowledged. "I looked it up and thought, 'They can't do this,'" said Samford, 29. For almost three years, she coached volleyball at the private school. Samford was named "Coach of the Year" and recently began teaching science. But when she got pregnant last fall, the school fired her because she was not married. "We all have different views and interpretations," Samford said. "It's not necessarily the Christian thing to do to throw somebody aside because...