Hilary Duff Shares Sweet Pic of Son, Admits She's 'Devastated' to Miss His Pre-K Graduation

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Being a working parent can be hard!

Hilary Duff sure felt this recently when she had to miss her 5-year-old son Luca's pre-K graduation due to shooting her TV show, Younger.

MORE: Hilary Duff’s Mischievous Son Luca Gets Haylie Duff’s Daughter Ryan Into Trouble: See the Cute Moment!

In lieu of her attendance, the 29-year-old actress shared a sweet photo of Luca and his friend to Instagram, writing, "These boys graduated pre-k today. So proud of all they learned and the strides they made in 3 years. I was devastated to miss it. #bestbuds #movinonup #workinmama."

Congrats, boys!

Despite having to miss her kiddo's big day, Duff does seem to be enjoying life on set, documenting her day on Instagram...

Which, of course, included a silly Snapchat filter moment with co-star Nico Tortorella.

WATCH: Hilary Duff Shares Sweet Pics of New Rescue Dog -- But Can't Decide on His Name!

Alright, you two, enough funny business! After all, there's less than a week until season ​four of Younger, which returns to TV Land on ​Wednesday, June 28 at 10 p.m. ET/PT.

Watch the video below for the first gift Duff's son ever got her.

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