If primitive people can give birth in the sterile room, it may improve the chances of mother and child survival. However, even under modern medical conditions, childbirth is risky, and not all deliveries will be smooth. Therefore, even if primitive people had facilities such as sterile rooms, it does not necessarily mean that all births will be without problems. Sterile room can effectively prevent the invasion of bacteria, viruses and other microorganisms, but it can't prevent all delivery risks, such as fetal malposition and placental abruption.
In addition, the fertility rate of primitive people may be different from that of modern humans, so even if there are facilities in sterile rooms, there may not be a high fertility rate. Therefore, it is still difficult to make an exact prediction about the problem that primitive people gave birth to children in sterile rooms.