Credit: Twitter Photo: JWOWW, Chris Weidman, and Roger Mathews at Roger's Birthday Party

JWOWW and her fiancé Roger Mathews are about to have their hands full. The Jersey Shore couple is expecting their first daughter together in July. So what are they doing before diaper duty starts up? Going to parties and having some grown up time!

The parents-to-be celebrated Roger's birthday over the weekend, where JWOWW planned a big surprise for her beau.

"Surprised the sh*t out of @RogerMathewsNJ for his bday w/help from @DavidTutera- CELEBrations premieres 8/1 on @WEtv!" JWOWW tweeted.

What did this mean for Rog? The birthday boy had an exciting guest show up at his party, undefeated UFC fighter Chris Weidman. And it looks like it was all caught on camera! CELEBrations is a reality TV series where celebrity wedding planner David Tutera helps women create a dream event. We'll clearly be tuning in for this episode.

It looks like JWOWW, who flaunted her big baby bump at the party, wasn't the only one who was glowing during the event. "Thanks @JENNIWOWW @ChrisWeidmanUFC @danawhite @WEtv @ufc for a night to remember !" Roger tweeted.

The UFC champion also tweeted, "Good times being 1 of the surprises for @RogerMathewsNJ surprise bday party. @JENNIWOWW great job!"

It looks like this Jersey crew had a great time celebrating. Happy birthday to Roger and good work organizing, JWOWW!