Friends as well as rivals took it to social media to congratulate the couple.
Education secretary Gavin Williamson called it a “wonderful news”, while Labour leader Sir Keir Starmer tweeted: “Congratulations to Carrie and Boris Johnson on the happy news that they’re expecting another child.”
“I’m very sorry to hear of Carrie’s earlier miscarriage. I’m sure that her speaking out will be of comfort to others. Every best wish to them both.”