United Kingdom, March 17 -- Cassie Ventura is expecting a baby boy.

The 38-year-old actress already has daughters Frankie, five, and Sunny, three, with Alex Fine and revealed while celebrating her husband's birthday that they are going to have their first son.

She wrote on Instagram: "There aren't words to describe how grateful I am that I get to do this life with you! The laughter and pure joy that I get to experience with you is beyond any of my dreams and manifestations. You've taken care of me and my heart like no other, you're hands down the best girl dad and I'm SO excited to see you now become a father to OUR SON!"

Cassie first announced her pregnancy in July.

At the time, she shared a series of images from a professional photo...