That is the pressure of feminism coming to bear. But working women and feminism don't necessarily go together. In Japan and Hong Kong, for example, where women are increasingly working outside the home, feminist pressure has been rather weak. This has undoubtedly affected family life. The most obvious consequence of women working outside the home is that they don't have as much time for children.
Families reduce the number of children they choose to have.
In countries like Germany and Japan, the number of children is way below the number necessary to maintain the population. In the United States it is only slightly below. In addition, parents spend much less time with the children they do have. Instead of traditional parenting, they substitute child-care facilities and other institutional arrangements. It's still an open question how far that cuts.