INDIANAPOLIS — A lawsuit by a former Roman Catholic schoolteacher who says she was fired by a northern Indiana diocese for trying to get pregnant through in vitro fertilization can proceed to trial, a federal judge has ruled.

In a mixed ruling this week, US District Judge Robert L. Miller Jr. in Fort Wayne said Emily Herx deserves a chance to prove her claim that her termination by the Diocese of Fort Wayne-South Bend was based on sex discrimination.