Does a baby receive some of its mother's blood while in the womb?

Les teaches that the physiological makeup of the woman's reproductive system demonstrates that the fetus in the mother's womb never receives any of the mother's blood. He notes that this blows the mind of many people, but it is physiologically the way it is. The blood comes from the father. He gives the example of cattle genetics, where veterinarians at Colorado State University proved that even in cattle, none of the mother cow's blood courses through the fetus; the blood system comes from the sire. Les ties this to God's intrinsic plan for the virgin birth: Christ's blood was divine because it came from His father, who was God Himself. He also anticipates the question about the RH factor.