Kourtney Kardashian is sharing more insight into her and Travis Barker's 7-month-old son's health.

The Kardashians star opened up about the reason she underwent emergency fetal surgery during her pregnancy in September, sharing in the June 20 episode that there was fluid in Rocky Thirteen Barker's lungs.

"We had a terrifying scare," she said. "It's super rare—the condition that he had—but it's also super rare and lucky that we caught it. Thank you, God, for a successful surgery. I'm honestly just so grateful, I have no words."

And although the operation went well, Kourtney said she was "filled with fear" following the procedure and when Rocky's symptoms returned.

"The fluid in his lungs actually did start coming back," the 45-year-old explained in a confessional. "Then I watched this documentary called Heal that was all about the power of positive thinking and how our thinking can really affect our health."

The Poosh founder was inspired to change her outlook and hope for the best.

"I started talking to the baby every day, saying my prayers," she continued. "After I had that mindset shift, the fluid was completely gone and we had not one single problem after."

Still, Travis was worried about Rocky up until he was born. 

As they headed to the hospital, which was documented on the Hulu show, he told his wife, "I don't want him to come out early. I want to make sure his lungs are perfect—everything's perfect."

And in the end, their son, born Nov. 1, is just that. 

"It's everything I've ever dreamed of," Kourtney gushed on the show. "Everything we've been through to get to this moment, it just feels so surreal."

She added, "I'm so happy in my blissful baby bubble and the love with Rocky."

Now, fall in love with Rocky too by taking a look at his baby album…

"Happy Father’s Day @travisbarker !!" Kourtney Kardashian wrote to Travis Barker on Instagram on Father's Day 2024, sharing never-before-seen pics of her husband with their son Rocky Thirteen. "Beyond grateful for the Dad that you are to our baby boy, and all of our kids."

Kourtney continued, " You keep us safe and protected and take care of us. Having a family with you is heaven. Happy to celebrate you!"

Kourtney also included this pic of Travis and Rocky in her Father's Day tribute.

Travis played with his baby boy on a private plane.

The Poosh founder and the rocker shared a sweet kiss while holding their son Rocky, who they welcomed on Nov. 1, 2023.

Travis commemorated Kourtney's first Mother's Day with Rocky, writing on Instagram in May 2024, "Happy Mother’s Day to my best friend and partner."

"Our children are so lucky to have you," the musician—who is also dad to step-daughter Atiana de la Hoya, son Landon Barker and daughter Alabama Barker with ex Shanna Moakler—continued in his tribute to Kourtney. "Thank you for filling our home with love, laughter, and joy."

Sharing photos of Kourtney and Rocky, Travis added in his Mother's Day message, "I love you forever and ever my wife @kourtneykardash."

Rocky fell asleep during this tender moment with Kourtney, who also shares kids Mason, Penelope and Reign with ex Scott Disick.

Travis shared a sweet look at life with their baby boy, captioning this mother-son photo on Instagram in April 2024, "I love our life together. Thank you for being the most amazing wife a person could ask for."

The Kardashians star celebrated her 45th birthday alongside Travis and Rocky in April 2024, with the family ringing in the milestone with a firework display.

Rocky took his first international flight when the family flew down to Australia for Travis' Blink-182 tour in March 2024.

Travis splashed around the gentle waves with his son during a family vacation in the Bahamas.

Kourtney and Rocky shared a bed in this sweet snap posted by Travis on Mother's Day 2024.

The drummer's baby boy joined him behind the kit.

Kourtney and baby Rocky kicked back by the pool during a tropical vacation in April 2024.

Travis shared this adorable photo of Rocky and his mama on Kourtney's 45th birthday in April 2024.

The Blink-182 rocker held his son during Kourtney's 45th birthday celebrations.

Rocky donned on a pair of elf boots during Christmas 2023.