>but the company can simply lie and say it was part of larger layoffs.
Which they would have to prove by showing others laid off.
>Have her pick a fight with her boss over text message. If he admits it she sues and submits that as evidence. If he doesn’t there’s really no way to prove it.
This some of the worst advice you could offer someone.
She can file a complaint. If she can prove it was over her pregnancy she can win, but the company can simply lie and say it was part of larger layoffs. Her best bet is to get someone clueless and angry to admit it was over her pregnancy.
Have her pick a fight with her boss over text message. If he admits it she sues and submits that as evidence. If he doesn’t there’s really no way to prove it.