Photo:Araya Doheny/Getty Images; Kaley Cuoco/Twitter

Kaley Cuoco 05 04 23 Matilda 08 02 23

Araya Doheny/Getty Images; Kaley Cuoco/Twitter

TheFlight Attendantactress posted a sweet photo of her little one on her Instagram Story Wednesday.

“I mean…” Cuoco, 37, captioned the image with a GIF, as another that read “4 months” was placed on top of Matilda’s lap.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

Kaley Cuoco/Instagram

Kaley Cuoco and baby Matilda 08 02 23 4 months of Matilda

Cuocowelcomed her first childwith boyfriend Tom Pelphrey on March 30. The loved-up parents regularly share updates of their family —pets included— on their respective Instagram accounts.

The proud mom recentlyshared a sweet imageof Matilda enjoying a watermelon popsicle in the pool with her dad.

In the photograph, Pelphrey, 41, held Matilda above the water while he fed her the red treat, as she was dressed in a matching watermelon bathing suit. “Watermelon popsicle in the pool. Iconic,” Cuoco captioned the photo.

In another pic, theBig Bang Theoryalum posed in the pool in a star-patterned swimsuit and black sunglasses as she hugged their family dog. “Opal the swimming chi,” Cuoco wrote in the caption.

Tommy Phelphrey/Instagram

Kaley Cuoco and baby Matilda 07 26 23

Back in May, Pelphreyspoke with PEOPLEabout adjusting to parenthood as a first-time dad.

“It’s amazing. It’s heaven, it’s challenging at times,” he said. “It’s the most beautiful thing ever.”

When asked what the most surprising thing about being a dad is, Pelphrey said, “It really has been surprising to me that it feels intuitive. There’s just something about how to hold her and how to burp her and intuiting what she wants sometimes when she’s upset.”

source: people.com