Nicole “Snooki” Polizzi who confirms exclusively with Us Weekly that she is 15 weeks pregnant -- and engaged to the father, beau of one and a half years Jionni LaValle.

And the Jersey Shore star and LaValle, both 24, know just what detractors are thinking, they tell Us. "I have different priorities now," reformed party girl Snooki says. "I don't care what anybody else thinks. As long as I know I'm ready and he's ready." Adds LaValle: "We are not going to screw this up." The once pouf-haired star and LaValle discovered the news "right after New Year's," she said. Snooki's first thought? "'S--t, I've been drinking!' I was worried. It was New Year's Eve and we were in Vegas, so I did go crazy." she admits. But the mother-to-be says her partying days are something of the past. “No more peeing on porches. Those days are over.”

Robert Pattinson

Also included in this week’s Hot Stuff items which include the scoop on Katy Perry’s secret texts with Robert Pattinson, Scarlett Johansson cutting of contact with Ryan Reynolds because of Blake Lively, Amanda Seyfried dating Josh Hartnett, and celebrity trainer Tracy Anderson’s star-studded baby shower.


Katy Perry

KATY PERRY: Secret Texts With Rob!

Pattinson has been reaching out to the newly single singer

She only finalized her divorce a month ago but Katy Perry already has another Brit in her life: Robert Pattinson! “Rob has been texting and calling Katy every day,” says a source close to the “Part of Me” singer, 27. Not that the Twilight star, 25, is angling for a hookup. “He’s just checking in on her,” explains an insider. “It’s not romantic at all. They’re friends.” (Pattinson is pals with Perry’s BFF, Raising Hope’s Shannon Woodward, 27.) In fact, now that her ex-husband, Russell Brand, 36, has been linked to other women, “all Katy’s friends are concerned about how she’s dealing with it,” says another source. Pattinson — “still going strong” with his love of three years, Kristen Stewart, 21 — should rest easy, though, insists a Perry confidant. “Katy is doing amazing,” says the source. “She is over Russell and feels like she’s been set free. Her hair may be blue, but she isn’t!”

Scarlett Johansson

SCARLETT JOHANSSON: Not Speaking to Ryan Now

Scarlett is seeing red! Ever since her ex-husband, Ryan Reynolds, took up with Blake Lively, “Scarlett cut off all contact with Ryan,” reveals a source. “She’s pissed.” The Avengers star, 27 (now with ad exec Nate Naylor, 38), had hoped to rekindle her romance with the actor, 35, says the insider. When they went to an NYC concert together in September, Johansson “was still trying to get him back,” explains the source. But her efforts were thwarted as soon as his Green Lantern costar, 24, began wooing him in October. Now, “he and Blake are very serious,” says the source, noting Reynolds is moving to NYC for her. “She gives Ryan a sense of home.”

Amanda Seyfried

Amanda Is Dating Josh!

A new Big Love! Amanda Seyfried, 26, has been seeing Josh Hartnett, 33, since January, sources tell Hot Stuff. “Josh likes to keep things low-key, so they’ve just been hanging out,” says a pal of the pair, who were set up by a friend. That seems to suit Seyfried. On a double date with her Gone costar Jennifer Carpenter, 32, and Michael C. Hall, 41, at West Hollywood’s Chateau Marmont February 6, a witness says, “She looked into him!”

Tracy Anderson

Star-studded Shower!

Fit to be spoiled! Celebrity trainer Tracy Anderson scored swag from a bevy of A-list fans at her March 3 L.A. baby shower. Gwyneth Paltrow sent a $500 Fresco
Bloom high chair for the girl Anderson, 37, and hubby Matt Mogol, 40, expect in May, while Jennifer Lopez and Courteney Cox contributed pricey items from her registry. Nicole Richie brought a blanket, toys — and laughs. Says a guest, “She and [Army Wives’] Sally Pressman kept telling jokes!”

Photos By: RD/Kirkland/Kabik/Orchon/Retna