This paper provides novel evidence on how technological change shaped women‘s labor market participation, fertility, and marriage in 19th-century Massachusetts. We distinguish between the sewing machine‘s dual role as a manufacturing technology and as a household appliance. Using rich town- and individual-level longitudinal data, we show that this innovation induced divergent responses across the wealth distribution. Women from lower-wealth households increased labor supply, delaying marriage and reducing fertility. In contrast, for wealthier women, the sewing machine functioned as a domestic efficiency tool, enabling earlier family formation and greater civic engagement while reducing market work. Our findings demonstrate how household constraints and social norms mediate the effects of labor-saving technologies, suggesting that technological progress can reinforce inequality by influencing women‘s economic and social roles.