adoption and money

My husband and I have an adoption interview for a sibling set of 3. That would mean that we would have 5 children. Which my husband sees as $$$$$. Two of the three are IV-EFC eligible. There are no medical issues, so we are wondering if there is any chance of them getting any money. We both work and have good jobs, but the idea of comfortably affording 5 children is scary. Any of you had experiences or knowledge that you could share??? Thanks