According to Illinois law, if an unmarried couple has a child together, the father will not have any legal rights regarding custody or visitation unless he establishes paternity. The mother will also not be able to obtain child support payments unless the father's paternity has been established. A man who believes himself to be the father of a child may register with the Putative Father Registry either before or within 30 days of a child's birth.
A father or mother can request a DNA test to establish paternity. A judge may also order a man to take a paternity test. Following that, the parents could try to work out a custody agreement that takes into account the best needs of the child. If either parent receives full physical custody, they can arrange a visitation schedule. The mother is not obligated to allow the father visitation until paternity is established.