No, it isn’t.
I know this because, among other things, I read this Fifth Circuit decision last night after the Philadelphia Eagles beat the New England Patriots. The plaintiff, a pharmacy technician, was pregnant when her employer hired her. Then, she chose to disclose her pregnancy to her supervisor a few weeks into her new job. And, yada, yada, yada, the plaintiff got fired. According to the company, it terminated the plaintiff for failure to follow instructions and insubordination.
But, the plaintiff believed that the defendant had ulterior motives. Specifically, she alleged that discriminatory and retaliatory animus motivated the