This is the first large-scale comparative study to search for macro-level determinants of the realization of short-term fertility intentions across European countries. Using the unique follow-up feature of the Generations and Gender Survey and adopting rigorous definitions of intentions and outcomes, it reports on the level of fulfilment and finds clear heterogeneity across European countries. Using a multilevel, multivariate approach, it examines the nature of macro-level factors that may explain differences in the realization of fertility intentions. Based on our analysis, we conclude that labour market stability (as measured by fluctuations in the unemployment rate), price stability, heavy welfare state involvement, and the dominance of certain attitudinal conditions all support the greater realization of short-term fertility intentions.