Katherine Schwarzenegger and Chris Pratt are marking a major milestone at home, their son Ford just turned one.

On Sunday, Nov. 9, Schwarzenegger, 35, shared a sweet glimpse of Ford’s first year on Instagram. 

“One! Happy 1st birthday my boy! I love you to the moon and back my little prince,” she wrote, celebrating the big day with a series of family photos.

The post showed the proud mom holding Ford as an infant, plus moments of the toddler wearing a tiny crown, playing, and snuggling with Pratt, 46. 

Other photos featured the family of three outdoors at sunset, Ford stacking blocks, and Schwarzenegger carrying her youngest child close.

The couple, who married in 2019, first welcomed daughter Lyla Maria in 2020, followed by daughter Eloise Christina in 2022. Ford arrived in November 2024. 

At the time, they shared a joint announcement, saying, “We are overjoyed. Mama and baby are doing well and Ford’s siblings are thrilled by his arrival. We feel so blessed and grateful.”

Pratt is also dad to his 13-year-old son Jack from his previous marriage to Anna Faris.

Schwarzenegger has often expressed how much she loves raising kids alongside Pratt. 

Earlier this month, she told PEOPLE that she and her husband are enjoying “this season of life and parenting.” Communication, she explained, has always been at the center of their household. 

“We do a really good job communicating,” she said, noting how that has helped them as their family grows and life gets busier.

She added that they work well together because they “balance each other out really well.” 

While some of their strengths differ, she said recognizing that they’re a team helps keep everything steady. Schwarzenegger described this chapter as a “sweet time,” grateful to spend so much of it with their young children.

As Ford turns one, the family continues enjoying simple moments together, celebrating milestones, sharing responsibilities and staying present as their kids grow.