Can an adoption agency be required to abide by my wishes?

I’m Filipino and a devout Catholic. My boyfriend and I made a mistake and were with each other before we got married. We are not ready to raise a child and want to place our baby for adoption, but we want to ensure that our child is raised in a Catholic, Filipino household. If we work with an adoption agency and state our preferences, are they required by law to do what we ask and place our child with parents of our same culture and beliefs? How do we make sure this has happened and a proper placement has been made after I give up my baby at the hospital, if that’s what we do decide to do?