April 25, 2012 (INDIANAPOLIS) --A former Indiana parochial school teacher who says she was fired for trying to get pregnant through in vitro fertilization is suing her former employer and the Roman Catholic diocese to which it belongs. Thirty-one-year-old Emily Herx of Hoagland, Ind., accuses the Diocese of Fort Wayne-South Bend and St. Vincent de Paul school in Fort Wayne of discrimination. The Roman Catholic Church is against IVF. Legal experts say the case illustrates a murky area in the debate over separation of church and state that even the U.S. Supreme Court has failed to clearly address. The court ruled in January that anti-discrimination laws allow for a "ministerial exception" for religious workers. But the justices failed to define who was and who wasn't a religious employee.