Right: https://www.pewresearch.org/wp-content/uploads/2015/05/FT_15.... The vast majority of women (90% in 1976, 86% in 2013) have at least one child. But the lifetime number of births has fallen from 3.1 in 1976 to 2.1 in 2013. This reflects changes in the perceived optimal family size: https://www.pewresearch.org/wp-content/uploads/2015/05/FT_15...