Pay attention to exception

You have to find out the ground for this lay off. If you were laid off because you were in maternity leave, surely you can sue the employer; If you were laid off because of your working performance, you still can sue, since they should not do it while you are on maternity leave; There are some exceptions, for example, the business of your employer not in good shape, and they have to lay off a big percentage of their labor force. In that case, you were not discriminated, just one out of a big group. The nature of the law suite will change.