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IT'S A BOYCaitlyn Jenner’s Daughter Cassandra Marino Gives Birth to Baby No. 3!

Congratulations are in order for Caitlyn Jenner's daughter, Cassandra Marino!

The 36-year-old — who's also known as Casey Jenner — and her husband, Mike Marino, welcomed their third baby together.

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Casey confirmed her son's arrival on her private Instagram account.

"He made it! One day before his due date and on Mike's dad's birthday," she wrote. "I am elated and exhausted but a super happy non-pregnant mama."

According to Us Weekly, they named the child Luke.

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Casey and Mike are also parents to two daughters, Isabella and Francesca. It was first revealed in April that they were expecting a new addition.

We are so happy for them! For a look at all of Caitlyn's grandkids, check out the gallery below.