1. It's a private CHRISTIAN school. If it violates the tenants of their faith, then they should be allowed to fire someone for pre-martial sex. However, the last time a checked my bible, god's considers it a worse sin to not extend forgiveness to someone who needs it, just saying.
2. As long as any legal action solely focuses on the disclosure of private medical info to outside sources, then the legal action should be sucessful, once the lawyer tries to make it about ANYTHING else, the judge should dismiss the lawsuit immediately.