Sorry to have upset you. They married when she was 4 months pregnant. So yes, the child was BORN while they were married. I just wanted some advice, I am sorry to have wasted your time.
I'm not upset, I'm just trying to wack through to the pertinent facts.
Okay, this is the deal: He IS, or ought to be, the legal father of the child even though he is not the biological father.
Texas law:
http://lawdigest.uslegal.com/paternity/general/6706/
§ 160.204. Presumption of Paternity in Context of Marriage
(a) A man is presumed to be the father of a child if:
(1) he is married to the mother of the child and the child is born during the marriage;
(2) he is married to the mother of the child and the child is born before the 301st day after the date the marriage is terminated by death, annulment, declaration of invalidity, or divorce;
(3) he married the mother of the child before the birth of the child in apparent compliance with law, even if the attempted marriage is or could be declared invalid, and the child is born during the invalid marriage or before the 301st day after the date the marriage is terminated by death, annulment, declaration of invalidity, or divorce; or
(4) he married the mother of the child after the birth of the child in apparent compliance with law, regardless of whether the marriage is or could be declared invalid, he voluntarily asserted his paternity of the child, and:
(A) the assertion is in a record filed with the bureau of vital statistics;
(B) he is voluntarily named as the child's father on the child's birth certificate; or
(C) he promised in a record to support the child as his own.
(b) A presumption of paternity established under this section may be rebutted only by an adjudication under Subchapter G.
Amended by Acts 2001, 77th Leg., ch. 821, § 1.01, eff. June 14, 2001.
That site goes on to show Subchapter G, and lots of other law. Have a good look, have bf take a good long read.
Do you know how they managed to get divorced without legally addressing custody, visitation (also called "parenting time"), and child support??