Most women in England and Wales no longer have a child before they are 30, official figures show for the first time.
An Office for National Statistics (ONS) report found 50.1 per cent of women born in 1990 were childless by their 30th birthday.
It is the first time there has been more childless women than mothers below the age of 30 since records dating back to 1920 began.
A third of women born in that decade had not mothered a child by the age of 30, for comparison.
Women born in the 1940s were the most likely to have had at least one child by that milestone (82 per cent).
But there has been a long-term trend of people opting to have children later in life and reduce family size ever since, the ONS said.
The most common age to have a child is now 31, the ONS estimates based on latest data, compared to 22 among baby boomers born in the late 1940s.
The share of women reaching 30 without a child has been increasing consistently since the late 70s, when around a fifth were childless.
That proportion rose dramatically the following decade. By 1980, 24 per cent of women aged 30 were childless, rising to 37 per cent by 1990.
By the turn of the century, some 43 per cent of women mothered a child by their 30th birthday. And last year it breached the 50 per cent mark for the first time.
At the same time, there has been an increase in the number of women who never have children.
The report found 18 per cent of women aged 45 were childless by 2020.
Modern women of all ages are also choosing to have smaller families.
Mothers have, on average, 1.92 children now which is lower than the 2.08 for their mothers' generation.
Two child families remain the most common family size (37 per cent), however this is a decrease in the proportion of those having two children compared with their mothers' generation born in 1949 (44 per cent).
The elite's long-term war on the traditional family unit won't end here - that's why there's such a big push on the LGBTQP+ agenda now too. This war is far from over. The time for push-back really has come.