Alec and Hilaria Baldwin Expecting Baby No. 4

Alec and Hilaria Baldwin's family is growing!

Hilaria used Instagram to announce the news on Friday, sharing a photo of herself and her husband lying on the floor as their kids cuddle around them.

"Our Baldwinitos are getting a new teammate this spring," she wrote. "I’m gonna make them a special cake to tell them if it’s a boy or a girl...I’ll post it tomorrow midday. We are so excited!"

Alec and Hilaria married in 2012 and are parents to 4-year-old daughter Carmen and sons Rafael, 2, and Leonardo, 1.

The actor, who is also dad to 22-year-old daughter Ireland, re-posted the photo to his own account, writing, "Here we go again..."

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Hilaria told Access Hollywood in October that she would be open to having another child, explaining, “For some reason, right after I deliver a baby I want another one.”

"I feel like it’s like going down this, like, crazy slide, and then you’re like, 'I wanna go again,'" she added. "'Cause it’s just so invigorating and I had great experiences."

Earlier this week, Hilaria showed off the family's Halloween costumes, revealing that the group had dressed up as the cast of The Wizard of Oz.

Happy Halloween 🎃 💛

A post shared by Hilaria Thomas Baldwin (@hilariabaldwin) on

Photo Credit: Instagram / @hilariabaldwin