'Fixer Upper' star Chip Gaines 'swears' by what gender he thinks baby No. 5 with wife Joanna Gaines is

Is a baby boy on the way for "Fixer Upper" stars Chip and Joanna Gaines?!

According to Joanna's most recent Instagram post, which was an ultrasound video that she shared on Wednesday, hubby Chip "swears" that she's carrying a boy.

SEE ALSO: ‘Fixer Upper’ stars Chip and Joanna Gaines announce pregnancy

"Chip swears he can already tell it's a boy," Joanna captioned the clip. "Look at the little heartbeat!! 🙌🏽❤️❤️ #5"

The post came less than a day after Chip announced on Tuesday night that he and his wife were expecting their fifth child together. In the hilarious snap, the couple sported matching green tops and baby bumps.

"Gaines party of 7," he captioned the picture. "(If you're still confused.. WE ARE PREGNANT)"

See more photos of the couple on Instagram:

He added on Twitter that the couple conceived baby No. 5 after "a little too romantic of a concert" by Johnnyswim in Waco, Texas "a few months back."

"One thing led to another, & we are officially pregnant," he added. "And I could not be more EXCITED! #5 #7ThePerfectNumber"

Chip and Joanna Gaines, who announced in September that their beloved HGTV hit "Fixer Upper" was coming to an after its current fifth season, already share Drake, 12, Ella, 11, Duke, 9, and Emmie Kay, 7.

RELATED: Peak inside the Gaines household:

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