I think that what Paul is trying to get across here is that in God's eyes, there is much value for the woman to build her home by having and raising children. Not that this is her only role. In fact, Paul encourages those who can to stay single (1 Cor. 7). But Paul was one to address the family and the roles of the fathers, mothers and children in that context. And God is pleased when the family works in such a harmonious way. So yes, that is part of the righteous woman's role that pleases God - but not her only role.