The transition to parenthood represents a turning point shaping couples' arrangements for paid work and housework. Previous studies often examined these changes in isolation, rather than as interrelated trajectories reflecting diverse models of family division of labor. Drawing on data from different-sex couples from the 1984-2019 Panel Study of Income Dynamics and the 1984-2020 German Socio-Economic Panel, this study uses multichannel sequence analysis to identify four and three patterned constellations of family division of labor in the United States and Germany, respectively. These constellations differ in women's and men's respective contributions to household earnings and their relative participation in housework, spanning from one year before to ten years after the birth of a first child. National differences are found in the identified constellations, their prevalence, and the role of couples' conjoint education in shaping these constellations. In both countries, couples in which the husband has an educational advantage are most likely to transition to a traditional arrangement. However, only in the U.S. do couples with both partners holding a college degree also tend to enter a traditional arrangement. Furthermore, among U.S. couples in which the wife has an educational advantage, they are most likely to adopt a partly egalitarian arrangement (equal earnings but not housework) upon becoming parents.