1. All releases for and consents to adoption executed in this state by the mother before the birth of a child or within 72 hours after the birth of a child are invalid.2. A release for or consent to adoption may be executed by the father before the birth of the child if the father is not married to the mother. A release executed by the father becomes invalid if:
(a) The father of the child marries the mother of the child before the child is born;(b) The mother of the child does not execute a release for or consent to adoption of the child within 6 months after the birth of the child; or(c) No petition for adoption of the child has been filed within 2 years after the birth of the child.
