Meilani Alexandra Mathews arrived Sunday afternoon, her rep confirms.

By peoplestaff225
Updated July 13, 2014 01:30 PM

Charles Sykes/Invision/AP

Talk about wow: Jenni Farley‘s baby girl is here!

The former Jersey Shore star, 28, and fiancé Roger Mathews welcomed their first child, daughter Meilani Alexandra, on Sunday, July 13, her rep confirms to PEOPLE.

“She is here! 7 lbs., 13 oz. Words can’t describe what looking into your child’s eyes can do to you. I’m humbled,” Mathews announced via Twitter.

“Jenni and Roger are so excited to welcome the newest guidette to the world,” Farley’s rep tells PEOPLE.

“Meilani and her parents are doing great and are happy and healthy. Meilani is already looking to trade her baby bottle for barbells.”

Adds a rep for MTV: “We’re fist pumping in celebration of [their] new baby girl. We’re so excited for the new parents and to welcome the newest member to the MTV family.”

On Monday, Farley Tweeted, “Thank you all for the beautiful messages and best wishes. Your love and support during this amazing time in our lives means everything to me, Roger and baby Meilani.”

Although she is the couple’s first child, their daughter already has a built-in best friend. Shortly after Farley confirmed she was pregnant, her Snooki & JWoww costar Nicole “Snooki” Polizzi announced she was also expecting.

“They’re basically cousins. There’s no option. You’re sisters,” Farley joked to PEOPLE of the future friendship between their baby girls.

Farley was grateful to have a pregnancy pal in Polizzi, as she suffered severe morning sickness during her first trimester.

“I have been feeling hungover every day or I’m hugging the toilet,” the mom-to-be told PEOPLE in January.

But by April, Farley was feeling better — and craving carbs.

“I used to be dairy- and gluten-free, and I think I screwed myself because my body didn’t have it for so long, the moment I got pregnant, she’s like, ‘That’s all I want.’ She’s sucking the life out of me!” she told PEOPLE at the MTV Movie Awards.

E! Online was first to report the news.

— Anya Leon with reporting by Emily Strohm