I read this news story earlier: BBC link
It details a surprise drop in birth rate / average number of children and an increase in age of having first child to 30.
Apparently, "This may be due to a number of factors such as increased participation in higher education, increased female participation in the labour force, the increasing importance of a career, the rising opportunity costs of childbearing, labour market uncertainty, housing factors and instability of partnerships."
I suppose not all those factors solely relate to women. But this kind of news item never seems to mention the fact that it is often due to men's choices as well as women's - and sometimes above women's. The ideal lifestyle touted to men these days is the eternal playboy, never settling down, resisting the hormonal screeches of ovary-twanging women. Yet somehow when the childbirth rate goes down, it's because of these damn career women.
I say this as an older mother who did choose to delay, but I know lots of women who would have done it earlier, given a willing partner.