Pregnancy discrimination demand letters are different from a DFEH complaint. California law states that, in most cases, before an employee can file a pregnancy discrimination lawsuit, she must first file a complaint with the applicable government agency. If the pregnant worker’s discrimination claim is based on California law, then she files a complaint with California’s Department of Fair Employment and Housing (DFEH). If the claim is based on a violation of federal law, then the employee files a complaint with either: DFEH, or the U.S. Equal Employment Opportunity Commission (EEOC), based in Washington, DC.