[kelnos]

I read that as he told HR on Tuesday, and then was fired three days later, on Friday. Not that the wife was due the following Tuesday. We don't know how far out the due date was based on what OP said.

I agree that employees should give sufficient notice for something like that. But even if they don't, that's not grounds for firing. It might be grounds for disallowing the leave until the required notice period has passed, assuming that's documented and legally allowed.