We study the relationship between education and fertility, using compulsory schooling reforms in Europe as Natural Experiment. We use data from 9 European countries and the variation of compulsory education across countries and over time to identify the causal impact of education on the number of biological kids, the incidence of childlessness and teenage childbearing. Our results are surprising, education has a positive impact on the number of kids and a negative impact on childlessness. The results are insensitive to a number of falsification checks.