Jenna Dewan Reveals Why Getting Ready While Pregnant Is a 'Workout of Sorts'

The expectant mother hilariously showed behind-the-scenes footage of how she gets dressed to film 'The Rookie'

<p>Jenna Dewan/Instagram</p> Jenna Dewan shares a behind-the-scenes of how she gets ready to film

Jenna Dewan/Instagram

Jenna Dewan shares a behind-the-scenes of how she gets ready to film 'The Rookie'

Jenna Dewan is no rookie when it comes to getting dressed while pregnant!

The Rookie actress — currently expecting her third baby (second with fiancé Steve Kazee) — chronicled the behind-the-scenes of how she gets into her work costume in an Instagram video on Tuesday.

The video began with Dewan, 43, gasping in surprise as she put on her firefighter character's black pants. After laying out the rest of the outfit on a bench, she began tucking in a T-shirt inside her pants, proclaiming, "Okay, this is a workout."

Dewan said she was "being rushed" but continued by adding on her second top and "official jacket."

Related: Jenna Dewan Talks Being Pregnant with Her Third Baby at 43: 'Just Get It Done'

She laughed as she struggled to maintain her balance while putting on boots, telling the camera, "Firefighters, EMTs of the world, write in to tell me if you, too, are this tired after putting all these layers on."

She captioned the post, "A GRWM workout of sorts."

The soon-to-be mom of three shares son Callum, 4, with Kazee and daughter Everly, 10, with her ex husband Channing Tatum.

Last month, Dewan shared at the TCA Winter press tour in Los Angeles that her The Rookie costars have been an "amazing" support system.

<p>Raymond Liu/ABC via Getty</p> Jenna Dewan on 'The Rookie'

Raymond Liu/ABC via Getty

Jenna Dewan on 'The Rookie'

Related: Pregnant Jenna Dewan Celebrates St. Patrick's Day with Daughter Everly: 'Bigger Than Christmas for Us'

"They've been absolutely incredible and so supportive, and it's truly the best job in the entire world," said Dewan while also shouting out show writer Alexi Hawley.

"I mean, everyone's amazing. Thank you, first of all. I say this show is lightning in a bottle because we all get along," Dewan said. "As you can tell, I mean, we really all get along. It is a huge family on set, so I feel very taken care of. Alexi, you were amazing. I called — and I said, 'Hey, I have some news.' "

Last August, Dewan shared with PEOPLE how Everly has already picked up her own behind-the-scenes tricks and learned how to do makeup after accompanying her mom to sets at a young age.

<p>Jenna Dewan Instagram</p> Jenna Dewan and Steve Kazee pose with kids Everly Tatum and Callum Kazee

Jenna Dewan Instagram

Jenna Dewan and Steve Kazee pose with kids Everly Tatum and Callum Kazee

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"She's just been around it," Dewan said. "There's a part of her that's kind of interested, but she's really good. She has a little play set of makeup that I've been giving her and she's got a great look."

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