What can the flu do to my unborn baby?

Ry
My dad got his shot this year and I didn't, and now he has a nasty case of the flu. He's staying in his room and I'm staying in mine buts incense live together I'm afraid of touching doorknobs or eating anything from the fridge since I don't have my shot and my doctors office isn't offering it anymore (we live in a tiny town, it's a tiny office) so I'm wondering if I do start seeing symptoms, what do I do? What can it do to my little girl? I'm 21 weeks 1 day, and super paranoid first time mother.