I would agree to this if the dad is allowed to request a paternity test. I was not with my oldest son’s father when I got pregnant. He payed child support for all 19 years. We had some up and downs, but we coparented well. My son is now 26 and has a relationship with his father. Had I been allowed to receive child support when I was pregnant I would gladly allowed a DNA test if asked. My son’s father never requested one after birth. Our son looks just like his father. I think the parent who doesn’t have full custody should pay child support. I know dads who had custody of their children and the mom payed child support. It goes both ways.