Maksim Chmerkovskiy and Peta Murgatroyd Head to the Hospital on Son's Due Date: 'But First a Little Makeup'

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Maksim Chmerkovskiy and Peta Murgatroyd aren't messing around!

The Dancing With the Stars pros headed to the hospital on Monday, their son's due date, where they are preparing for their baby boy's upcoming arrival -- in more ways than one.

WATCH: Peta Murgatroyd Shares Intimate Bed Selfie With Maksim Chmerkovskiy on Their Anniversary

"But first...a little make up ?," Chmerkovskiy captioned a snap of his fiancée gussying up before the big moment.

The pair presumably headed to the hospital early Monday morning, as Chmerkovskiy posted a captionless -- and soundless -- video of a car ride just moments before.

WATCH: Pregnant Peta Murgatroyd Jokes She's 'Too Big to Get Up!' in Sweet Video Posted by Maksim Chmerkovskiy

Chmerkovskiy and Murgatroyd celebrated their baby shower last month, with an epic party in New York City.

See more in the video below.