Unborn Child Support Act

This bill amends the Social Security Act to require states to establish and enforce child support obligations from a biological father for an unborn child, directly affecting mothers expecting a child and the child's biological father. Key provisions include allowing retroactive payments starting from the month of conception (with medical verification), requiring court determination of payment amounts based on the mother and child's best interests, and prohibiting mandatory paternity testing without the mother's consent. It explicitly defines "unborn child" as any human fetus at any developmental stage carried in the womb. The law applies to child support enforcement under federal program rules, with changes effective two years after enactment.