Jenelle Evans wedding: She and husband David Eason prepare on 'Teen Mom 2'

Jenelle Evans and David Eason will be seen preparing for their September 2017 wedding on tonight's new episodes of the eighth season of "Teen Mom 2." Although the couple has already tied the knot, fans are just now seeing the moments leading up to their September 23 ceremony and in a sneak peek at tonight's show, Eason is seen working in their yard as Evans reveals her plans to go dress shopping in New York City.

"We can say our 'I do,' you know, under the tree... then we'll have our little reception area... dance floor over there by the building.

The next step is to get the building in here and then grass," Evans tells her then-fiance in a preview clip.

Jenelle wanted all her children at her wedding

"Since I'm not inviting my mom to the wedding, we have to do it on a weekend when I have Jace," Jenelle Evans continues.

As fans well know, Evans gave up custody of her oldest son, eight-year-old Jace, shortly after his birth and while she's since attempted to regain custody of her child, she has not yet been able to do soon. In fact, despite her efforts earlier this year to win back custody of the boy, a judge ultimately decided the child was better off with his grandmother and awarded Evans with nothing more than visitation.

How did Jenelle Evans select her wedding date?

"Don't you think we should do it on the day we officially started dating?" Evans asks Eason in the sneak peek.

"We should," he responds.

Jenelle Evans went on to tell her future husband that she knows she needs to have Olive Garden cater their wedding reception. Although Eason quickly laughs off the idea, Evans continues on, telling Eason that she wants tons of chicken alfredo and, of course, breadsticks.

Jenelle Evans and her husband began dating in 2015

After splitting from Nathan Griffith in summer 2015, Evans embarked on a romance with Eason in September of that year and less than one year later, they conceived their first child. Then, in February 2017, after welcoming their baby girl, Ensley Jolie Eason, just weeks prior, the couple became engaged and began to plan their wedding.

In addition to eight-year-old Jace and eight-month-old Ensley, Evans is also mom to three-year-old Kaiser, who she shares with Griffith.

To see more of Jenelle Evans, David Eason, and their wedding plans, don't miss tonight's new episode of "Teen Mom 2" season eight, which airs on MTV at 9 p.m. and also includes Leah Messer, Briana DeJesus, Kailyn Lowry, and Chelsea Houska.