The proud mom, 36, took to Instagram to announce the birth of the new bundle of joy to the family by sharing a photo of three pairs of little shoes.
She captioned the sweet post, "So proud of these three glorious girls, it’s an honour being their mummy..feeling incredibly lucky today #happymothersday."
Here's the post, check it out.
As we previously reported, multiple sources confirmed in October 2018 that the Fifty Shades of Grey star and his actress wife were expecting their third child.
The couple, who has been married since 2013, also shares daughters Dulcie, 4, and Elva, 2, together.
Following the arrival of Dulcie, Jamie spoke out about how being a dad has changed him..
He told British Vogue in October 2014, "I love fatherhood. These last couple of years have been quite something. But we’re enjoying it."
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