THE TeenMom OG trailer had Mackenzie McKee looking worried over her son's "biting" and featured a pregnant Catelynn Lowell with her explosive gender reveal.
, 26, , 29, and Floyd, 28, can be spotted in the one-minute trailer released.
The tweet stated: "Yes, Tuesdays are back and bigger than ever!"
The "all-new" season of will be paired with Young And Pregnant starting in September.
'HE'S BITING'
The preview first showed Mackenzie dealing with a major concern about one of her sons.
The reality star said: "He's biting! He's hitting at school."
Mackenzie and her husband Josh share eight-year-old Gannon, six-year-old Jaxie, and three-year-old Broncs.
THE GENDER REVEAL
Then a pregnant Catelynn jumped back in surprise after a small device exploded pink confetti into the air.
Catelynn teased "another girl" as her hubby , 29, wrapped his arms around her.
Catelynn and Tyler are also the parents to daughters Novalee, six, and Vaeda, one.
Currently expecting her fourth daughter, Catelynn shared .
'GOOD TALK'
Towards the end of the clip, Cheyenne and her fiancé Zach Davis, 30, were in the middle of a conversation with Ryder, four.
Cheyenne started off: "I just wanted to tell you..."
She abruptly stopped herself when Ryder ran away all of a sudden.
As she was left sitting by herself, Cheyenne said: "Okay...great talk."
The Teen Mom star shares Ryder with ex Cory Wharton.
'MAKE EVERYTHING OKAY'
Ryder suffers from deficiency, a rare genetic condition that prevents the body from breaking down certain fats and causes low blood sugar, lack of energy, and muscle weakness.
revealed in her vlog, : "I just felt like back to back to back things, and I just didn't know how to handle them. And a part of me feels like I didn't even want to know how to handle them. I just wanted somebody to make everything okay. And I wasn't in that position."
She went on: "And when I was pregnant with Ace- the whole time I was nervous, waiting for something to happen, waiting for bad news... Every doctor's appointment it just felt like a weight was lifted off, being like okay he's fine.
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"Even finding out that Ace didn't have VLCAD, which is what Ry has. It was hard. It wasn't hard from the standpoint of, of course, I was so happy he didn't have it. But how do you celebrate him not having it when Ryder still has it? And as a mother, you just felt so much guilt."
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Cheyenne and Zach share their newborn Ace, two months.
Teen Mom OG, which also stars Amber Portwood and Maci Bookout, and Young And Pregnant will premiere on Tuesday, September 7th starting at 8/7c.