In the clip, Lowry first spoke to her boyfriend Elijah Scott on the phone, telling him she received the email with the results, and how she can't wait to open the email.
"I don't know if I can do it!" Lowry said, before closing her eyes, and then opening them to see the results. Her jaw dropped in shock. After she was quiet for a few beats, she announced, "They're boys."
The Teen Mom 2 alum began to laugh over the exciting news, before she then said goodbye to Scott on the phone.
According to the post's caption, the video is only part 1 of her gender reveal, and there are two more to come.
"In typical Kail + the Chaos fashion, we have to break this into a 3-part mini-series 😂😅." Lowry captioned the video. "You'll fully understand after part 3. Wish me luck 🤞🏻."
Lowry, who shares son Isaac, 13, with ex Jo Rivera, son Lincoln, 9, with ex Javi Marroquin and sons Lux, 6, and Creed, 3, with ex Chris Lopez, welcomed newborn, Rio, with Scott, privately last year.
Meanwhile, the 31-year-old also shared her thoughts about possibly getting engaged to Scott in a new interview with People.
"He's been pushing for it. But I've already kind of done marriage once and I f--ked it up royally. So I'm a little hesitant," Lowry said.
She added that since they "jumped right into parenthood together," she wants to focus on that step in their relationship at the moment.
"I kind of would like to have something to look forward to in the future instead of doing everything all at once," Lowry said. "I think we have time. If we're meant to be together, then we don't need to rush into it tomorrow."