No need to formally congratulate them: an enthusiastic fist pump should do the trick.
“The world just got another Guido!!! Lorenzo Dominic LaValle has entered the world weighing 6lbs, 5oz. Nicole, Jionni & Enzo are doing great!” her rep shares.
An ecstatic Polizzi shared her big news on Twitter early Sunday morning. "I am SO IN LOVE with my son Lorenzo Dominic!" she wrote. "I had my little man last night, healthy at 6 lbs! HE'S MY WORLD."
The well wishes are already rolling in for the happy couple; Polizzi's castmate Pauly D sent her a sweet tweet Sunday morning. "Congrats @snooki And @JLaValle !!!! I'm Officially Uncle Pauly !!! #MyMeatballHadAMeatball," he wrote.
Snooki, 24, and LaValle, whom she met at Seaside Heights hotspot Karma in 2010, first shared their happy news -- that they are engaged and set to become parents -- with Us earlier this year.
The reformed party girl admitted she knew their announcement would cause a bit of a stir among her critics.
"I have different priorities now," the reality star assured Us. "I don't care what anybody else thinks. As long as I know I'm ready and he's ready."
Added LaValle, "We are not going to screw this up."
In a May chat with V magazine, Polizzi said she couldn't wait to welcome her little one into the world.
"Everyone will be surprised to see a different side of me," she shared. "I'm loving, caring, sensitive, protective and very maternal, no matter what people might think."
Since her big reveal, her Jersey Shore castmates have given a lot of thought to how they're going to accommodate the little one.
"We'll turn the smush room into a nursery," Vinny Guadagnino joked to Us in March. "We're all family. Whatever she needs."
This article originally appeared on Usmagazine.com: Nicole "Snooki" Polizzi, Fiance Jionni LaValle Welcome Son Lorenzo!