Credit: MTV

Spoiler alert — Teen Mom 3's Mackenzie Douthit is happily married to her rodeo riding baby daddy, Josh McKee, and they're expecting another kiddo this winter! But things weren't always so easy for the young couple...

In this bonus clip from last week's episode, Mackenzie admits one of her biggest fears — raising her son Gannon as a single mom. And after her most recent fight with Josh, she's hoping for the best but planning for the worst.

"Josh is pretty adamant about needing space, right?" Mackenzie's mom Angie asks during a grocery shopping trip.

"Yup, so I'm gonna give him that space," Macks replies. "He wants it, so there's nothing I can do about it, so I just kinda have to deal with it."

Though Angie reminds her daughter that she and Josh have fought and broken up numerous times, Mackenzie feels like this time is different.

"We haven't texted for six days," she says. "I feel like, 'Oh, crap. My family's ruined. What now?"

Fortunately, Mackenzie has her mom's full support — no matter what ultimately happens with Josh.

"You're not the only single mother in the world," Angie says. "If you have to be a single mom you're going to be the best one in the entire world."

Moms always say the right things, don't they? Watch the sneak peek clip and share your thoughts in the comments below.