Teen Mom stars Catelynn Lowell and fiance Tyler Baltierra have set their wedding date.

The 20-year-olds, who have already proven they'll be there for each other 'for better or for worse,' will exchange their vows on July 13, 2013, In Touch Weekly reported.

"We've been together almost eight years, and I honestly think that we're soulmates," Lowell told In Touch.

The couple, who reportedly began dating in seventh grade, are planning a Renaissance-themed ceremony to be held in Michigan, their home state. According to the magazine, Lowell and Baltierra are expecting 220 guests to attend their wedding.

Lowell and Baltierra were shown giving up their only daughter Carly, now three-years-old, up for adoption when Teen Mom began. In addition to the hard decision they had made together and surviving one emotional break-up during their long relationship, Lowell's mother was dating Baltierra's imprisoned father, and both parents allegedly struggled with drug addition and abuse.

The young pair, whose first dance as a married couple will be set to Jason Mraz's song "I Won't Give Up," told In Touch they want Carly to serve as their flower girl during the ceremony.

"I really want her to be there," Baltierra explained. "We wouldn't even be getting married if it wasn't for her."