Davidson is the UK’s first party leader to give birth while in office, following in the footsteps of New Zealand prime minister, Jacinda Ardern, who became a mum earlier this year.

Theresa May was among those who tweeted her congratulations, saying that she wished the new family of three “every happiness”.

The couple began the process of IVF in July last year, and said they were “very lucky” for the treatment to take just one cycle.

“But I’m not talking about where I got it done and all that sort of thing,” Davidson added, in an interview a few months ago. “Our child is already going to have two mums and one is a politician and I think I’d rather they asked me questions about where they came from, rather than googled it.”

In her new book, the MSP describes being pregnant as an experience that is “invasive, joyous, mortifying, fearful and hopeful”.

“I’m simply doing what thousands of working women do every year: having a child, taking some time off, and then returning to work soon after,” she later said.

Images: Getty, Twitter

Politician Ruth Davidson becomes the first UK party leader to give birth while in office