LAS VEGAS, Nev. —  Jesse Csincsak is officially off the market!

The former Bachelorette winner and girlfriend Ann Lueders got married Saturday at the Rumor Hotel in Las Vegas. Guests at the nuptials included Bachelor couple Jason and Molly Mesnick, as well as Vienna Girardi, who won the latest season of the ABC reality show.

Lueders, who appeared on Mesnick's season of The Bachelor, is four months pregnant with the couple's first child, a boy they have named Noah. The twosome announced the pregnancy earlier this month, a week after Csincsak popped the question with a $22,000 diamond ring as the couple stared at Lake Erie.

Csincsak and Lueders, both 28, met last year on a cruise for former Bachelor and Bachelorette contestants.