The Hills are alive with the sound of babies!

Lauren Conrad is just one of the many former stars of The Hills who has recently gave birth to a baby—and we can't get enough of her little bundle of love.

On January 13, the reality star-turned-designer hopped on her Instagram Stories and shared an adorable baby photo of her six-month-old son Liam Tell getting his stretch on (as well as his cute on!).

Lucky for us she shared the magical little moment with the world!

On July 5, Lauren and husband William Tell announced that the duo had welcomed  a son.

"He's here!" the designer star shared on Instagram. "We're so excited to welcome Liam James Tell into the world!" 

The on-the-go mom has been all about her baby boy since then!

Lauren and William got married on Sept. 13, 2014 in California. On Jan. 1, 2017, Conrad announced via Instagram that she and her husband were expecting a baby.

But she's not the only star of the former MTV reality show star who has recently taken on the role as first-time mom.

Her former co-stars Whitney Port and Heidi Montagalso recently became moms for the first time. 

Check out the former Hills stars journey as first-time moms...

Kirra Max, The Hills Babies

Instagram

Audrina Patridge's beach baby spent a February day soaking in the sun and drawing pictures in the sand.

Audrina Patridge, Kirra Max, The Hills Babies

Instagram

For the Fourth of July, Audrina and her little girl celebrated with plenty of sparklers and sass.

Kirra Max, The Hills Babies

Instagram

For her angel's second birthday, Audrina posted an adorable Insta pic writing, "Happiest 2nd birthday to my beautiful intelligent little angel baby Kirra max. 2 years has gone by way too fast! .... I never knew how much I could fall in love with someone every single day over & over again until god brought this little cutie pie came into my life."

Delilah Ray, The Hills Babies

Instagram

"Someone's curious," wrote Jason Wahler in an Insta post of his cheeky daughter enjoying a meal in Corona del Mar, Calif.

Delilah Ray, Jason Wahler, The Hills Babies

Instagram

After taking a nap, the 10-month-old baby girl struck a pose with her 31-year-old daddy.

Delilah Ray, The Hills Babies

Instagram

Even with food all over her face, Jason Wahler's sweetheart can't get much cuter!

Camden Jack, Jaxon Wyatt, Saylor James, The Hills Babies

Instagram

Kristin Cavallari snapped a photo of her three cuties prepping for Mother's Day writing, "My life didn't begin until these 3 angels came into it. Being their mom has been the greatest gift this earth has to offer."

Saylor James, The Hills Babies

Instagram

Dressed in a bright yellow dress and scrunchie, Kristin's two-year-old girl is her little ray of sunshine.

Kristin Cavallari, Camden Jack Cutler

VLNY/Zodiac/Splash News

After leaving Lemonade in West Hollywood, Calif., Kristin Cavallari headed to a mommy and me class with her little boy strapped to her hip.

Lauren Conrad, Liam Tell, Instagram

Instagram

Lauren Conrad shared a photo of her sweetheart in a fluffy lamb costume writing, "This little lamb had his first trip to the pumpkin patch today."

Lauren Conrad, Liam Tell

Instagram

"Sunday snuggles with this little guy," wrote LC in an Instagram post of her sleepy boy.

Lauren Conrad, Instagram

Lauren Conrad/Instagram

LC posted a sweet photo of her son stretching on a bed on Jan. 13, 2017.

Lauren Conrad, Son, Baby, Liam, Paris, T-Shirt

Instagram

On Jan. 6, LC posted this Instagram photo holding her six-month-old baby boy.

Lauren Conrad, William Tell, Baby, Son, Liam, Christmas Card, 2017

Instagram

Lauren shared a sweet photo of her husband William Tell and baby Liam.

Sonny Rosenman, The Hills Babies

Instagram

Whitney Port's 11-month-old spent a hot summer's day chilling in his pool floatie.

Sonny Rosenman, Whitney Port, The Hills Babies

Instagram

"First time on a carousel. No big deal," wrote Whitney on an Insta post of the two at the Los Angeles Zoo and Botanical Gardens.

Whitney Port, Sonny Sanford Rosenman

Instagram

Whitney's baby boy Sonny looked like he didn't have a care in the world in December.

Whitney Port

Courtesy of Whitney Port

Whitney Port gave her son Sonny some love in December 2017.

Gunner Pratt, Heidi Pratt, The Hills Babies

Instagram

In June, Heidi posted a photo of the adorable duo relaxing in Crested Butte, Colo.

Heidi Montag, Spencer Pratt, Son, Baby, Gunner Stone

Instagram

Baby Gunner got a dose of doting parents Heidi and Spencer during the 2017 Halloween season.

Heidi Montag, Spencer Pratt, Son, Baby, Gunner Stone

Instagram

Heidi cradled baby Gunner in January 2018.

Heidi Pratt, Spencer Pratt

Instagram

Spencer, Heidi and Gunner went to visit Santa Claus during the 2017 Holiday season.

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