The first-time mother became one year older on January 12th. Deena shares the same birthday as singer Zayn Malik and Amazon CEO Jeff Bezos.
She spent the big day cuddling her little guy while calling him the "Best birthday gift ever."
Deena received a ton of birthday love from her Jersey Shore costars, notably Jenni "JWOWW" Farley and Mike "The Situation" Sorrentino, the latter of which is expected to surrender to the Bureau of Prisons on Monday where he will start his sentence for tax evasion.
CJ was welcomed into the world in the afternoon on January 5th. It's the first child for Deena and her husband Christopher Bruckner.
It wasn't an easy delivery room process for Deena, however, as she revealed it two days in order for her to give birth.
Do you think Deena and Chris will try for baby number two later this year? Sound off in the comments!