The couple first announced they were expecting their first child back in September. The exciting news was revealed when the 34-year-old mom-to-be debuted her growing baby bump on the cover of the U.K. digital magazine Make.
A month later, Leslie addressed her pregnancy again. "I am thrilled to be expecting," she told The New York Post, "and I can't wait to meet the new member of our family!"
The English actress starred as Ygritte opposite Harington’s Jon Snow on Game of Thrones from 2012-2014. They two sent fans of the fantasy show wild when they made their red carpet debut in 2016 at the Olivier Awards in London and confirmed their engagement in a newspaper announcement in 2017.