A spokesman for the Office for National Statistics (ONS) has said that the fall in the average age of mothers since 1973 could be due to several factors:
Possible influences include increased participation in higher education, increased female participation in the labour force, the increasing importance of a career, the rising opportunity costs of child-bearing, labour market uncertainty, housing factors and instability of partnerships.
More top news
A new Islamic State video reportedly shows a father helping IS members stone his daughter to death for adultery.
Footage shows the Derbyshire waterfall, called Kinder Downfall, blowing upwards as high winds from ex-Hurricane Gonzalo hit.
Video shows a child's incredibly lucky escape after a large glass panel smashed to the ground during shelling of Donetsk's Donbass Arena.