This article seemed more like the documentation of a cultural phenomenon (mothers able to publicly admit regret) than a sociological study. But I still want to

This article seemed more like the documentation of a cultural phenomenon (mothers able to publicly admit regret) than a sociological study. But I still want to know why mothers regret having children. The comments seemed to be filled with uncharitable explanations, but are there any publications (other than the isreali one) that summarises the reasons for regret?