The reality star, whose real name is Nicole Polizzi, tweeted the good news on Sunday to her Twitter followers.
The new mommy also gave a shout-out to Lorenzo's godmother, her BFF JWoww. "With Lorenzo's god mommy," Snooki captioned a photo of the the Snooki & JWoww stars.
Now that she's got Lorenzo's big day out of the way, Snooki says she plans to get back to writing her upcoming pregnancy book.
Congrats to the happy family!