Never discriminate, harass, or retaliate on the basis of pregnancy. The California Fair Employment and Housing Act (FEHA) prohibits discrimination and harassment based on pregnancy.Employers are prohibited from discriminating against people who are pregnant or may become pregnant at any point in an employment relationship. Confused about maternity leave? In this post an employment lawyer will answer your basic questions. This document provides guidance regarding the Pregnancy Discrimination Act and the Americans with Disabilities Act as they apply to pregnant workers. It is illegal for an employer to discriminate against or harass an employee because of pregnancy, childbirth, or related conditions. Under both laws, it is illegal for an employer to discriminate against or harass an employee because of pregnancy, childbirth, or related conditions. Under the PDA, employers with 15 or more employees are prohibited from engaging in pregnancy discrimination. According to the Pregnancy Discrimination Act, employers are forbidden to discriminate due to pregnancy.