Haylie Duff Introduces Daughter Ryan Ava

09/03/2015 at 11:30 AM ET

So sweet!

New mom Haylie Duff has been teasing photos of her daughter since Ryan Ava‘s birth in May — and now the proud mama is finally giving fans a good peek at her 4-month-old baby girl.

On Wednesday, Duff shared a snapshot of her little lady flashing a hint of a smile while lounging in a pink swimsuit.

“Baby’s first vacation,” the Real Girl’s Kitchen host, 30, captioned the cute candid.

Haylie Duff daughter Ava Ryan photo
Courtesy Haylie Duff

In honor of Ryan’s latest milestone, Duff followed up the photo with a second picture of her first child with fiancé Matt Rosenberg.

“Our sweet baby girl #RyanAvaErhard Rosenberg is 16 weeks today,” she wrote alongside the Instagram.

Baby's first vacation. #RyanAvaErhard 🌸🌴👶🏼🌴🌸 #16Weeks

A post shared by haylieduff (@haylieduff) on

Last week, for Man Crush Monday, Duff posted a fun photo of another special someone in her life: 3-year-old nephew Luca Cruz. Duff recently told PEOPLE that she’s come to rely on sister Hilary since becoming a mother.

“She’s been there to support me,” Haylie says. “Whether I just want to cry for a minute or I just need her to hold [Ryan] for a second or whatever it is, she’s just there to support me in any way she can.”

— Anya Leon

FILED UNDER: Babies , Haylie Duff , News

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Nicole on

Aww cute. She will have to have long hair cause those ears are interesting looking. Doesn’t take away from her cuteness but I’m sure when she gets older she won’t like them. Hilary’s little boy…sooo cute

Linda on

Awwww….too cute.

Bhavana on

She’s cute!

Anonymous on

So sweet!

Barb on

Adorbs!

chris on

She looks like a little pixie.

Mimi on

she’s cuter than I thought she would be considering what her mom looks like.