John Stamos' Wife Caitlin McHugh Shares New Photo of Son Billy & Fans Say He's Gotten so Big

John Stamos' wife recently shared an adorable photo of their son, and fans agree that the little boy is growing so fast.

On her Instagram page, proud mom, Caitlyn McHugh showed off her bundle of joy in new photos, and while fans gushed over the charming little boy, they mostly agreed that he is growing so fast! An amazed fan wrote:

"Oh, my goodness! He's gotten so big this year."

STAMOS' SON WAS BORN PREMATURE

Fans might have good reasons for their expressed shock as the little boy was born prematurely. William "Billy" Christopher was born nearly six weeks before his due date.

At the time, his parents were worried as they shared with PEOPLE that it took time to adjust, Caitlyn said:

"He wasn't fully baked, so that was very scary in the beginning."

"He was very, very small … fragile, little. Every time [he] fell asleep, you're like, 'Please wake up.' [We were] constantly checking to make sure he was still breathing," the mom of one recalled.

Through his role in the TV series, John got his first Emmy Awards nomination and won the Young Artist Awards in the category of Outstanding Supporting Actor in a Drama Series.

The pair were able to care for their little one, and this is obvious in the significant growth he gained in the space of two years.

THE DOTING DAD

Ever since Billy's birth, Stamos found himself smitten. The doting dad can't hide the fact that he is in love with his bundle of joy.

On social media, the "Fuller House" actor consistently shares cute images of him and the toddler to the delight of fans.

Stamos' Instagram page is enough evidence that the Hollywood star is a dad at heart. His Twitter fans aren't left out either as he shares updates about his little son on the app.

JOHN STAMOS (BIO)

Before becoming a father, Stamos made a name for himself through his long-time role in 1987's ABC- produced sitcom. John is a Greek-American who earned a degree in arts and literature.

Stamos began his acting career at the age of 19, as he featured in TV commercials. He landed his first acting gig in the 1982 soap opera, "General Hospital."

Through his role in the TV series, John got his first Emmy Awards nomination and won the Young Artist Awards in the category of Outstanding Supporting Actor in a Drama Series.

JOHN STAMOS ON "THE LITTLE MERMAID LIVE!"

Besides being a handsome bloke in movies, Stamos is a versatile actor who can hold his own even in princess-themed movies.

this is the star's recent reprisal of "Chef Louis" in ABC's live performance of Disney's "The Little Mermaid."

Alongside actors like Queen Latifah (Ursula), Auli'l Cravalho (Ariel) and singer, Shaggy ( Sebastian), Stamos gave an excellent performance of the live show which aired in November 2019.