Leave it to the Baldwins! Alec Baldwin's wife, Hilaria Baldwin, announced on Friday, Nov. 3, that she is pregnant with the couple's fourth baby — and she revealed their baby's sex in an adorably yummy gender reveal!

Hilaria shared a video on Instagram that documented the moment that the couple revealed to their three children — they already share daughter Carmen, 4, and sons Rafael, 2, and Leonardo, 1, together — whether they'll be getting a little brother or sister. In the cute clip, Hilaria cut the first slice of a homemade funfetti cake and the inside was blue — revealing that they're going to have another boy!

Hilaria first announced their pregnancy on Friday, Nov. 3 and she even teased their gender reveal in their pregnancy announcement. "Our Baldwinitos are getting a new teammate this spring❤️. 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!" she wrote on Instagram alongside a cute photo of the happy family-of-five.

The couple — who married in 2012 — are already parents to a daughter Carmen, 4, and sons Rafael, 2, and Leonardo, 1. Alec is additionally a dad to a daughter, Ireland, 22, from his previous marriage to Kim Basinger.

In a previous interview, the yoga instructor revealed how she is on board for their fourth child in four years (yes, seriously). "For some reason, right after I deliver a baby I want another one. It’s kind of, I feel like it’s like going down this, like, crazy slide, and then you’re, like, ‘I wanna go again.’ Cause it’s just so invigorating and I had great experiences," Hilaria said before confessing, “Yes! I would totally do one more!”

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Happy Halloween 🎃 💛

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Do you know who else can't wait for the new addition? Their daughter Carmen, who has apparently been "begging for a baby sister!". "Carmen has been begging for a baby sister. She finally got fed up and shoved a baby doll up her dress, telling me she will have the baby for me,” Hilaria previously shared. “But I'm the mommy and she is the big sister. (She also told me that the mommy swallows the baby to get in the tummy then the baby hatches out of its shell?)” It looks like Carmen will have to wait until tomorrow to see if it's going to be a boy or girl! As for us? We really can't wait to meet their new bundle of joy very soon!

We can't wait to meet their new bundle of joy very soon!