Will this hurt my baby?

I know you need to eat properly when breastfeeding, but I have no food. I haven’t been eating properly for the last couple of days and I haven’t eaten anything whatsoever since yesterday. I might be getting some groceries on Monday so I will be able to eat then, but do you think anything will happen to my baby in the meantime? She gets formula too.

Edit: I’m not American or living in America. I don’t have access to any program that you’d recommend to assist me.