March 25, 2012 04:30 PM

Make no mistake – now that she’s pregnant and engaged, Nicole “Snooki” Polizzi’s partying days are on hold as she prepares to become a mother, according to her Jersey Shore castmate, Vinny Guadagnino.

She ll be a great mom. She s already drastically changed her life,” Guadagnino told PEOPLE at Saturday’s 23rd Annual GLAAD Media Awards in New York. “I think this is a good wakeup call, so I think she ll be cool.”

He also revealed he was surprised by the news she’s expecting.

I had no idea. Actually people would call me, like, ‘Is the show still gonna work?’ And I was like, ‘What are you talking about, she s not pregnant.’ And then all of the sudden, that whole thing came out and I was like, Oh my God.

As for what Snooki should name the little one, he suggested, “Maybe Pauly.”

Even with so much change among the cast, including a challenging time for Mike “The Situation” Sorrentino, who has revealed he sought treatment for a “prescription medication problem,” Guadagnino says he’s not worried about the show’s future and expects all the cast will return to the series.

“Everyone s saying they re not going to be there, but I don t know if they’re going to be there or not. I have a great feeling they re gonna be there and nothing s going to change,” he said.

While he he’s not sure how Sorrentino is doing, saying “I don t really speak to him in general,” Guadagnino did add, Of course, I wish him well.

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