Key points are not available for this paper at this time.
John B. Casterline, Fatma El-Zanaty, Laila O. El-Zeini, Unmet Need and Unintended Fertility: Longitudinal Evidence from Upper Egypt, International Family Planning Perspectives, Vol. 29, No. 4 (Dec., 2003), pp. 158-166
Casterline et al. (Mon,) studied this question.