The article examines the question of how the selfreported financial situation has an effect on the actual birth of additional children in regard to generational support and migration background. The hypotheses to be tested are based on economic theories and research on the importance of economic uncertainty for fertility. Based on multivariate analyses of the two waves of the German Generations and Gender Survey, neither the individual financial situation, nor the relations between generations can be detected as effects on family expansion. The results show, however, that Turkish citizens differ in their migration experience in comparison to those who have immigrated in childhood or were born in Germany in terms of the explanatory factors. Factors like age of the woman, number and age of children are crucial in all groups under study.