Bristol Palin shares sweet new pics of daughter Atlee -- see her adorable 'first smile'!

Less than a month old, and Bristol Palin's sweet baby girl Atlee Bay is already grinning!

The former Dancing With the Stars contestant shared an adorable snap on Thursday of her father, Todd Palin, holding the smiling newborn.

RELATED: Bristol Palin Welcomes Baby No. 3 -- See the Sweet Pic!

"Her first real smile! At her papa of course!" Bristol wrote alongside the black and white photo.

her first real smile! at her papa of course!

A post shared by Bristol Meyer (@bsmp2) on

Atlee entered the world on May 8 and is the third child for the 26-year-old, who is the daughter of politician Sarah Palin. Bristol also has a 1-year-old daughter, Sailor, with husband Dakota Meyer and shares an 8-year-old son, Tripp, with her ex, Levi Johnston.

Bristol later shared a cute photo of the newborn wearing a custom embroidered nightgown, followed by a snap featuring Dakota holding Atlee, clad in a "Daddy's princess has arrived" outfit.

my atlee bay 🎀

A post shared by Bristol Meyer (@bsmp2) on

dying right now 😍

A post shared by Bristol Meyer (@bsmp2) on

The former reality star recently blogged about her latest addition, saying that Dakota did "amazing" during the "breeze" birth.

"[Dakota] held my hand, took care and encouraged me the entire time," she wrote. "I could not have a more supportive husband. This pregnancy has strengthened our bond and made our relationship stand even firmer on the foundation that we have proudly built up for our little family."

See photos of Bristol Palin:

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Bristol Palin, Dakota Meyer, Palin family
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Bristol Palin, Dakota Meyer, Palin family
GOOD MORNING AMERICA - Bristol Palin talks to Josh Elliott about being a teenage mom, on GOOD MORNING AMERICA, 5/5/11, airing on the ABC Television Network. (Photo by Ida Mae Astute/ABC via Getty Images)BRISTOL PALIN
CELEBRITY WIFE SWAP - 'Bristol & Willow Palin / Joan & Melissa Rivers' - Bristol and Willow Palin reside in Wasilla, Alaska with Bristol's four-year-old son, Tripp, who rules the roost. What Tripp says goes in the Palin household. When Melissa Rivers arrives in Wasilla, she's surprised to see snow on the ground - in May! Meeting Willow and Tripp, Melissa finds it a challenge to deal with Tripp's boyish exuberance, and feels that he needs to have a set daily routine. Aunt Willow is no help when it comes to discipline, and in fact is often the instigator behind Bristol's back. But Melissa is determined to bring structure to the Palin home, so when it's time for the rules change, she immediately initiates a new sticker chart reward system for Tripp. She also applies rules changes to Willow, helping Willow to get one step closer to following her passion in a career. 'Celebrity Wife Swap' is back and all-new on Sundays this summer, kicking things off SUNDAY, JUNE 23 (8:00-9:00 p.m., ET), on ABC. (Photo by Matt Hage/ABC via Getty Images) BRISTOL PALIN, TRIPP PALIN
THE VIEW - Bristol Palin and Mark Ballas ('Dancing with the Stars') appeared today, October 18, 2012 on ABC's 'The View.' 'The View' airs Monday-Friday (11:00 am-12:00 pm, ET) on the ABC Television Network. (Photo by Lou Rocco/ABC via Getty Images) BRISTOL PALIN, MARK BALLAS
DANCING WITH THE STARS: ALL-STARS - 'Episode 1510A' - In the two-hour Season Finale, the excitement continued with all of this season's eliminated couples returning to the ballroom, performing memorable routines of the season, on TUESDAY, NOVEMBER 27 (9:00-11:00 p.m., ET) on the ABC Television Network. (Photo by Adam Taylor/ABC via Getty Images) BRISTOL PALIN, MARK BALLAS
DANCING WITH THE STARS: ALL-STARS - 'Episode 1503' - It was 'Iconic Dance Night' and the couples were challenged by Judge Len Goodman to deliver show-stopping routines that the series had never seen before. The 11 remaining celebrities chose an iconic 'DWTS' dance to reinterpret, MONDAY, OCTOBER 8 (8:00-10:01 p.m., ET) on the ABC Television Network. For the first time ever, the celebrities took charge of the creative direction of the routine, given the responsibility for all artistic decisions relating to the performance. (Photo by Adam Taylor/ABC via Getty Images) TOM BERGERON, BRISTOL PALIN, MARK BALLAS
HOLLYWOOD, CA - OCTOBER 02: Bristol Palin arrives for Ubisoft Presents The Launch Of Just Dance 4 at Lexington Social House on October 2, 2012 in Hollywood, California. (Photo by Gabriel Olsen/FilmMagic)
Members of vice presidential nominee Sarah Palin's family (left to right), son Track, daughter Bristol, son-in-law to be Levi Johnston, daughter Willow, daughter Piper, husband Todd and infant Trig, stand on stage following her speech to the Republican National Convention at the Xcel Energy Center in St. Paul, Minnesota, Wednesday, September 3, 2008. (Photo by Harry E. Walker/MCT/MCT via Getty Images)
UNITED STATES - SEPTEMBER 04: Members of vice presidential nominee Sarah Palin's family (LtoR), Levi Johnston son-in-law to be, Willow, Piper, husband Todd and infant Trig, and Republican presidential nominee John McCain and vice presidential nominee Sarah Palin stand on stage following her speech to the Republican National Convention at the Xcel Energy Center in St. Paul, Minnesota, Wednesday, September 3, 2008. (Photo By Douglas Graham/Roll Call/Getty Images)
ANCHORAGE, AK - JULY 10: (EXCLUSIVE ACCESS, EDITORS NOTE: This image has been retouched) Bristol Palin and Levi Johnston pose during a photo shoot on July 10, 2010 in Anchorage, Alaska. (Photo by US Weekly/Getty Images)
UNITED STATES - SEPTEMBER 03: Members of vice presidential nominee Sarah Palin's family (l-r), Track, vice presidential nominee Sarah Palin and infant Trig, Bristol, son-in-law to be, Levi Johnston, Willow, Piper, stand on stage following Mom's speech to the Republican National Convention at the Xcel Energy Center in St. Paul, Minnesota, Wednesday, September 3, 2008. (Photo By Douglas Graham/Roll Call/Getty Images)
Bristol Palin is engaged!The 24-year-old mother of one and daughter of former Alaska governor and vice presidential candidate Sarah Palin is set to marry Sgt. Dakota Meyer, a 26-year-old Kentucky-born U.S. Marine vet and war hero who received the Medal of Honor in 2009.The two announced the news on social media on Saturday."I'm definitely the luckiest guy ever to be able to spend the rest of my life with @bsmp2 #shesaidyes," Meyer said on Instagram, alongside a photo of the two.
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MORE: Bristol Palin Talks Newborn Daughter and 'Wonderful' New Life in Texas: 'My Life Has Never Been This Normal'

A new bundle of joy isn't the only change for Bristol and Dakota -- the couple, who are about to celebrate their first wedding anniversary, recently relocated to Texas.

"When Dakota and I got married, we both agreed that we would 'meet in the middle' and move somewhere to dig our roots in a mutual, new, place," Bristol said. "We decided on Texas, and I couldn't be happier! The kids love it too. I feel like my life has never been this 'normal.'"

For more on Bristol and her family, watch the video below.


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