my ex had her husband sign an affidavit of paternity claiming he is the father now she says she knew at the time that he was not the father and so did he. She now wants me to pay child support. I have no problem doing that if we find out the child is in fact mine but can she go after me for the last 6 years worth when my son had a man who was the legal father all that time? Who will be paying child support me or the man who was considered his legal father?