According to the Center for Public Policy Priorities, 42% of single-mother families live in poverty; twice the rate of single-father families in Texas. Having a baby brings joy and new responsibilities for a family. If you happen to be having a baby but are not married to the father it can also deliver added stress, both mentally and financially. When parents aren't married, the law does not automatically recognize the biological father as a legal parent. Paternity must be established. Establishing paternity is determining a child's "legal" father and all the rights and obligations that go along with being a legal father. Why is it important to establish paternity? If you have a baby and are not married to the father, establishing paternity creates rights for both parents and the child.