Carrie Underwood admits second pregnancy is 'harder on my body' (exclusive)

Carrie Underwood is handling her pregnancy like a pro, but she does admit that the second time is "harder."

The 35-year-old pregnant singer beamed at the 2018 CMT Artists of The Year at Schermerhorn Symphony Center in Nashville, Tennessee, on Wednesday. ET caught up with the "Cry Pretty" songstress, who admitted that she's been having different symptoms than when she was pregnant with her son, Isaiah.

"It's definitely different than the first time," Underwood confessed. "When they say every pregnancy is different, it really is. Just different symptoms. I feel like this one is just a little harder on my body for some reason. But it's been really good."

The singer, who sparkled in a Tadashi Shoji draped long sleeve sequin dress with cutout detail, added, "I'm squeezing myself into whatever dresses I can squeeze myself into." 

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2018 CMT Artists of the Year: Red carpet arrivals
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2018 CMT Artists of the Year: Red carpet arrivals
NASHVILLE, TN - OCTOBER 17: Carrie Underwood attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Carrie Underwood attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Miranda Lambert accepts an award onstage during the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Maren Morris (L) and Ryan Hurd attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Hillary Scott(R) and daughter attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Honoree Hillary Scott of musical group Lady Antebellum attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Kimberly Schlapman (L) and Karen Fairchild of musical group Little Big Town attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Kelsea Ballerini attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Martina McBride attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Trisha Yearwood attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Sara Evans attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Sheryl Crow attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: JoJo Fletcher attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: (L-R) Dave Haywood, Hillary Scott and Charles Kelley of musical group Lady Antebellum attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Maddie Marlow (L) and Tae Dye of musical duo Maddie & Tae attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Tori Kelly attends the 2018 CMT Artists of The Year in a dress by Greta Constantine at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Elle King attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
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Underwood also revealed that her and husband Mike Fisher's 3-year-old son is excited to be a big brother, but there is one thing he will not be doing.

"He says he won't change any poopy diapers though," Underwood shared. "I understand, maybe I can change his mind."

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Carrie Underwood out and about in 2018 since her accident
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Carrie Underwood out and about in 2018 since her accident
DISNEY CHANNEL PRESENTS THE 2018 RADIO DISNEY MUSIC AWARDS - Seven-time Grammy Award-winning artist Carrie Underwood was honored with the 2018 RDMA 'Hero' Award in recognition of her generosity, humanitarian efforts and dedication to supporting a myriad of charities. The award was presented to her by former 'American Idol' judge Randy Jackson. The '2018 Radio Disney Music Awards' airs Saturday, June 23 (8:00 p.m. ET/PT) on Disney Channel, as well as multiple Disney-branded platforms including Radio Disney, the Radio Disney app, the DisneyNOW app and Disney.com/RDMA. (Image Group LA/Disney Channel) CARRIE UNDERWOOD
HOLLYWOOD, CA - JUNE 22: Carrie Underwood attends the 2018 Radio Disney Music Awards at Loews Hollywood Hotel on June 22, 2018 in Hollywood, California. (Photo by Rich Fury/Getty Images)
HOLLYWOOD, CA - JUNE 22: Carrie Underwood attends the 2018 Radio Disney Music Awards at Loews Hollywood Hotel on June 22, 2018 in Hollywood, California. (Photo by Rich Fury/Getty Images)
NASHVILLE, TN - JUNE 06: Carrie Underwood attends the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018 in Nashville, Tennessee. (Photo by Mike Coppola/Getty Images for CMT)
NASHVILLE, TN - JUNE 08: (EDITORIAL USE ONLY) Carrie Underwood performs onstage during the 2018 CMA Music festival at Nissan Stadium on June 8, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images)
NASHVILLE, TN - JUNE 06: Carrie Underwood attends onstage at the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
NAPA, CA - MAY 16: Carrie Underwood performs at the Jam Cellars Ballroom during Live In The Vineyard Goes Country on May 16, 2018 in Napa, California. (Photo by Tim Mosenfelder/Getty Images)
NASHVILLE, TN - JUNE 06: Mike Fisher and Carrie Underwood attend the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - MAY 03: Carrie Underwood celebrates the new CALIA By Carrie Underwood Mother's Day campaign at (R)evolve on May 3, 2018 in New York City. (Photo by Kevin Mazur/Getty Images for CALIA by Carrie Underwood)
NEW YORK, NY - MAY 02: (EXCLUSIVE COVERAGE) American Idol Season 7 Winner David Cook as 'Charlie Price' and American Idol Season 4 Winner Carrie Underwood pose backstage at the hit musical 'Kinky Boots' on Broadway at The Hirshfeld Theatre on May 2, 2018 in New York City. (Photo by Bruce Glikas/Bruce Glikas/FilmMagic)
NASHVILLE, TN - APRIL 29: Country artist and wife of Mike Fisher #12 of the Nashville Predators Carrie Underwood sings the National Anthem prior to Game Two of the Western Conference Second Round against the Winnipeg Jets during the 2018 NHL Stanley Cup Playoffs at Bridgestone Arena on April 29, 2018 in Nashville, Tennessee. (Photo by John Russell/NHLI via Getty Images)
NASHVILLE, TN - APRIL 19: Singer Carrie Underwood visits 'The Highway' at SiriusXM Nashville Studios at Bridgestone Arena on April 19, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for SiriusXM)
NASHVILLE, TN - APRIL 19: Singer Carrie Underwood and host Storme Warren visit 'The Highway' at SiriusXM Nashville Studios at Bridgestone Arena on April 19, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for SiriusXM)
LAS VEGAS, NV - APRIL 15: Carrie Underwood performs during the 53rd Academy of Country Music Awards at MGM Grand Garden Arena on April 15, 2018 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
LAS VEGAS, NV - APRIL 15: Carrie Underwood, winner of the award for Vocal Event for 'The Fighter' (with Keith Urban), attends the 53rd Academy of Country Music Awards at MGM Grand Garden Arena on April 15, 2018 in Las Vegas, Nevada. (Photo by Jason Merritt/ACMA2018/Getty Images for ACM)
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The couple, who announced they were expecting a second bundle of joy in August, meanwhile, are getting ready for their baby's arrival.

"We have picked out a name, but we're keeping that to ourselves right now," she revealed. "We're fixing to move. I haven't bought anything yet, we still have some of the stuff, cribs and stuff from my son, but we'll figure it out. We're about to move so I'll start buying stuff once we're there. It'd be pointless to buy it and then move it."

Underwood took the stage during the CMT Artists of the Year ceremony, where the show featured an all-female slate of honorees.

"It's a wonderful statement. I think tonight is going to be a fun night," the American Idol alum expressed. "We're going to see some of the best talent that this particular show has ever seen all on one stage together. Not just because we're women, but because everybody here is amazing."

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