Look out, world. Snooki is a mom.

The "Jersey Shore" star Nicole Polizzi and her fiancé Jionni LaValle welcomed son Lorenzo Dominic at 3 a.m. Sunday at an unnamed New Jersey hospital, according to MTV.

"I am SO IN LOVE with my son Lorenzo Dominic ! I had my little man last night, healthy at 6lbs! HE'S MY WORLD! ?," the new mom Tweeted Sunday morning.

Snooki and LaValle, a gym teacher, got together in 2011, after the reality TV star lamented being single. The duo are now engaged, with plans to get married yet to be ironed out.

"I mean, I do have a dream wedding," Snooki told MTV in April. "But I definitely don't even want to talk about it or think about it because I'm not even ready for it yet. I just want my baby first."

The pregnancy was a surprise to some.

The universe's reaction may best be summed up by a Snookie rep, who told MTV, "The world just got another Guido!"

It took only a few hours for little Lorezno to be given his first of what may be many "guido" nicknames, with the rep calling him "Enzo."

"We couldn't be happier for Nicole and Jionni on the healthy delivery of their baby boy," MTV said in a statement. "We look forward to Lorenzo's first trip to the Jersey Shore and can't wait to see his first animal print onesie."

There is a cause for concern though, as Snooki joked she hoped her "Jersey Shore" castmate JWoww would get knocked up soon as well. Then, their offspring can mate and presumably create the ultimate form of "guido."

"I want four total, so hopefully, when I have my second, she's ready to have her first, so they can either date and make an offspring together - so they can make a Snooki/JWoww baby," she said. "So, they're either gonna date or be best friends."