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Chapter 2, "Great Expectations? Women's Work and Fertility in the Face of Career Uncertainty", is motivated by the fact that women in different occupations exhibit markedly different patterns of fertility and labor supply over the life-cycle. Women in high-powered occupations tend to give birth later and exhibit a downward-sloping participation profile across the life cycle, while their low- powered counterparts not only give birth earlier but their participation profile is instead upward sloping. Using a life-cycle model in which married households make fertility and female labor supply decisions and learn about their income profile parameters, I find that uncertainty about one's wage growth is key in explaining the different fertility patterns of women, by occupation. High wage penalties due to work interruptions help explain why a significant proportion of professional women do not return to the labor market after exiting upon childbirth.