Julia Stiles is pregnant with her first child: See her growing bump!

Julia Stiles is going to be a mum!

The 36-year-old actress and her fiancé Preston J. Cook will welcome their first child later this year, her rep has confirmed.

The 10 Things I Hate About You star, who is currently promoting her new thriller series Riviera, showed off her growing baby bump during a radio interview in London.

Julia and Preston met while filming the 2015 film Go With Me, where Preston worked as a camera assistant. And it seems they fell hard and fast for each other as they were engaged by Christmas Eve that year.

The pair were holidaying in Isla Grande, Colombia, when Preston popped the question.

"Best Christmas Ever!" the Save the Last Dance star captioned a photo on Instagram that showed off her stunning sparkler in January 2016 to announce the news.

But the couple have been in no rush to set a date for their big day.

"I’m not getting a ton of marital advice," the actress told People in 2016. "We’re really slow on the wedding planning, so I haven’t really been soliciting advice."

And it seems now they've got a little one on the way, those plans will most likely have to wait a little longer.

Julia's new project, Riviera, sees her play an art curator whose life takes a turn for the worst when her husband is killed in an explosion aboard a yacht in the French Riviera.

The 10-part series is set to premiere on June 15 on the UK's Sky Atlantic.

Congrats to the happy couple!