WATCH: The Final Straw! Catelynn Lowell Reveals Her Breaking Point Before Heading To Rehab In A 'Teen Mom OG' Clip

Catelynn Lowell isn't afraid to admit when she needs help.

In a sneak peek clip for Teen Mom OG, producer KiKi has a heartbreaking conversation with Cate about her future plans to check into a treatment center. "I just need to go get myself help," the reality star says as she breaks down in tears.

"Whatever they say, is what we need to do," Cate's husband, Tyler Baltierra, suggests. "They're the professionals."

On last weeks episode, Cate bought a tiny pig, which may have been the final straw. "Did the pig just bring so much stress out of nowhere?," Kiki asks.

Watch Cate and Tyler open up more about her decision to go seek help in the clip above. Teen Mom OG airs Monday night at 10PM ET on MTV!