You are afraid that you would lose contact with the children if the relationship with their mother broke up
Do you feel child support laws (meaning laws that oblige fathers to provide income for their biological children even if they are not living with those children) in your country are?
Do you feel that men and women have equal chances to get custody of the child (ren) in a divorce proceeding?
Are there laws in your state regarding the establishment of paternity? (Establishment of paternity means when a man registers the child as being his.)