Carrie Underwood gives birth to baby boy with husband Mike Fisher

Carrie Underwood is officially a mom of two!

The 35-year-old country singer gave birth to her second child with husband Mike Fisher, a baby boy, on Jan. 21.  The couple decided to name their youngest son Jacob.

"Jacob Bryan Fisher entered the world in the wee hours of the morning on Monday...his mom, dad and big brother couldn’t be happier for God to trust them with taking care of this little miracle!" Underwood shared on Instagram alongside new family photos. "Our hearts are full, our eyes are tired and our lives are forever changed. Life is good..."

The couple is already parents to their 3-year-old son, Isaiah. Underwood revealed she was pregnant last August in an Instagram video explaining why she wasn't going on her upcoming Cry Pretty Tour 360 until May 2019.

“Mike and Isaiah and I are absolutely over the moon and excited to be adding another little fish to our pond,” she said. “This has been a dream come true with the album and with baby news and all that stuff. We’re just so excited and glad you guys and can share in this and be a part of this with us.” 

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Carrie Underwood and Mike Fisher together
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Carrie Underwood and Mike Fisher together
NASHVILLE, TN - JUNE 06: Mike Fisher (L) and Carrie Underwood attend the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
NASHVILLE, TN - JUNE 06: Mike Fisher (L) and Carrie Underwood attend the 2018 CMT Music Awards at Bridgestone Arena on June 6, 2018 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
NASHVILLE, TN - NOVEMBER 08: NHL player Mike Fisher and singer-songwriter Carrie Underwood attend the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by Jason Davis/FilmMagic)
BRENTWOOD, TN - OCTOBER 24: Singer-songwriter Carrie Underwood (L) and NHL Player Mike Fisher (R) attend Nashville Shines for Haiti benefiting Sean Penn's J/P Haitian relief organization featuring Tim McGraw hosted and underwritten by Johnathon Arndt and Newman Arndt at the Arndt Estate on October 24, 2017 in Brentwood, Tennessee. (Photo by Rick Diamond/Getty Images for J/P Haitian Relief Organization)
NASHVILLE, TN - JUNE 08: Nashville Predators forward Mike Fisher and Carrie Underwood attend the 2016 CMT Music awards at the Bridgestone Arena on June 8, 2016 in Nashville, Tennessee. (Photo by Taylor Hill/FilmMagic)
NASHVILLE, TN - JUNE 10: Singer Carrie Underwood and NHL player Mike Fisher attends the 2015 CMT Music awards at the Bridgestone Arena on June 10, 2015 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
NASHVILLE, TN - JUNE 10: Singer Carrie Underwood (L) and NHL player Mike Fisher attend the 2015 CMT Music awards at the Bridgestone Arena on June 10, 2015 in Nashville, Tennessee. (Photo by Kevin Mazur/WireImage)
NASHVILLE, TN - SEPTEMBER 09: Mike Fisher and Carrie Underwood attend the 8th Annual ACM Honors at Ryman Auditorium on September 9, 2014 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for ACM)
LAS VEGAS, NV - MAY 18: (EXCLUSIVE COVERAGE) Singer Carrie Underwood (R) and hockey player Mike Fisher attend the 2014 Billboard Music Awards at the MGM Grand Garden Arena on May 18, 2014 in Las Vegas, Nevada. (Photo by Kevin Mazur/Billboard Awards 2014/WireImage)
NASHVILLE, TN - JUNE 04: Mike Fisher and Carrie Underwood attend the 2014 CMT Music awards at the Bridgestone Arena on June 4, 2014 in Nashville, Tennessee. (Photo by Larry Busacca/WireImage)
Carrie Underwood and Mike Fisher attend the 'TIME 100 Gala, TIME's 100 Most Influential People In The World' at the Frederick P Rose Hall at Lincoln Center in New York City. � LAN (Photo by Lars Niki/Corbis via Getty Images)
NASHVILLE, TN - JUNE 05: NHL player Mike Fisher (L) and singer Carrie Underwood attend the 2013 CMT Music awards at the Bridgestone Arena on June 5, 2013 in Nashville, Tennessee. (Photo by Kevin Mazur/WireImage)
FRANKLIN, TN - DECEMBER 03: Carrie Underwood and Mike Fisher attend the CMT Artist of the Year Awards at The Factory At Franklin on December 3, 2012 in Franklin, Tennessee. (Photo by Ed Rode/FilmMagic)
LOS ANGELES, CA - NOVEMBER 18: Singer Carrie Underwood (R) and husband Mike Fisher arrive at the 40th Anniversary American Music Awards at Nokia Theatre L.A. Live on November 18, 2012 in Los Angeles, California. (Photo by Gregg DeGuire/WireImage)
LOS ANGELES, CA - NOVEMBER 18: Singer Carrie Underwood (R) and NHL player Mike Fisher at the 40th American Music Awards held at Nokia Theatre L.A. Live on November 18, 2012 in Los Angeles, California. (Photo by Kevin Mazur/AMA2012/WireImage)
NASHVILLE, TN - NOVEMBER 01: Recording artist Carrie Underwood and husband Mike Fisher attend the 46th annual CMA Awards at the Bridgestone Arena on November 1, 2012 in Nashville, Tennessee. (Photo by Jon Kopaloff/FilmMagic)
NASHVILLE, TN - JUNE 06: Mike Fisher and Carrie Underwood attend the 2012 CMT Music awards at the Bridgestone Arena on June 6, 2012 in Nashville, Tennessee. (Photo by Taylor Hill/FilmMagic)
NASHVILLE, TN - JUNE 06: Mike Fisher and Carrie Underwood attend the 2012 CMT Music awards at the Bridgestone Arena on June 6, 2012 in Nashville, Tennessee. (Photo by Michael Loccisano/WireImage)
LOS ANGELES, CA - MAY 23: Mike Fisher and singer Carrie Underwood arrive at Fox's 'American Idol 2012' Finale Results Show at Nokia Theatre L.A. Live on May 23, 2012 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)
LOS ANGELES, CA - MAY 23: Singer Carrie Underwood and professional ice hockey player Mike Fisher arrive at 'American Idol' Season 11 Grand Finale Show at Nokia Theatre L.A. Live on May 23, 2012 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LAS VEGAS, NV - MAY 20: NHL Player Mike Fisher and Singer Carrie Underwood arrive at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
NASHVILLE, TN - JUNE 09: Mike Fisher and Carrie Underwood attend the 2010 CMT Music Awards at the Bridgestone Arena on June 9, 2010 in Nashville, Tennessee. (Photo by Jeff Kravitz/FilmMagic)
NASHVILLE, TN - JUNE 09: Mike Fisher and Carrie Underwood attends the 2010 CMT Music Awards at the Bridgestone Arena on June 9, 2010 in Nashville, Tennessee. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - JANUARY 31: NHL player Mike Fisher and singer Carrie Underwood arrive at the 52nd Annual GRAMMY Awards held at Staples Center on January 31, 2010 in Los Angeles, California. (Photo by Jeff Vespa/WireImage)
Singer Carrie Underwood and hockey Player Mike Fisher onstage during the 52nd Annual GRAMMY Awards - Salute To Icons Honoring Doug Morris held at The Beverly Hilton Hotel on January 30, 2010 in Beverly Hills, California. (Photo by Lester Cohen/WireImage)
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Last September, the country superstar revealed that she suffered three miscarriages in two years before becoming pregnant with her second child.

"2017 just wasn't how I imagined it," she said of her tough year during an appearance on CBS Sunday Morning. "I'd kind of planned that 2017 was, you know, going to be the year that I work on new music, and I have a baby. We got pregnant early 2017, and didn't work out.”

"And that was the thing, in the beginning it was like, 'OK, God, we know this is, just wasn't your timing. And that is all right. We will bounce back and figure our way through it,'" she continued. "And I got pregnant again in the spring, and it didn't work out. Got pregnant again, early 2018. Didn't work out. So, at that point, it was just kind of like, 'OK, like, what's the deal? What is all of this?’”

Prior to her heartbreaking revelation, a source told ET in August that the whole family was overjoyed at getting a new addition to the family. 

RELATED: See Carrie out and about as she recovered from facial injury

15 PHOTOS
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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"This baby is incredibly exciting because it represents new beginnings after a very challenging year," the source said, also referring to her serious fall in November 2017 that led to her getting 40 stitches on her face. "Mike is thrilled because he desperately wanted another baby, and their son Isaiah even talks about a baby brother or sister, so the whole family is in celebration mode. When Mike and Carrie married he told her he wanted a large family, so this is a dream come true for him."

ET spoke to Underwood at the 2018 CMT Artists of The Year at Schermerhorn Symphony Center in Nashville, Tennessee, last October, where she shared that her second pregnancy has definitely been different than her first. 

"When they say every pregnancy is different, it really is. Just different symptoms," she said. "I feel like this one is just a little harder on my body for some reason. But it's been really good."

As for how the adorable Isaiah feels about becoming a big brother, she noted that although he's excited -- and has no problem helping out his mama when needed -- there's one thing he won't do.

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

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