No. The law is very specific when it comes to pregnancy discrimination. The primary agency that administers federal law on pregnancy discrimination is the Equal Employment Opportunity Commission (EEOC). Contact EEOC to speak to a counselor about your legal rights. The EEOC or other federal agency handling the complaint may investigate and/or offer mediation services to help resolve the complaint. Your employer cannot take away credit for previous work years or seniority because you go on maternity leave.