Katherine Schwarzenegger and Chris Pratt are expecting their first child together

Katherine Schwarzenegger has a bun in the oven!

According to People, the 30-year-old daughter of Arnold Schwarzenegger is expecting her first child with her husband Chris Pratt.

The good news comes just 10 months after they tied the knot in June last year. Pratt, 40, is already a father to Jack, seven, with whom he shares with his ex-wife Anna Faris.

Speaking to Entertainment Tonight early last year about their engagement, when asked about his future, the Guardians of the Galaxy star told the outlet that he saw "lots of kids" in it.

"Maybe less time spent working, more time spent enjoying life." He continued, "I always want to be that guy that works to live, not lives to work. I think [I want to spend] just a lot of time at the farm and a lot of time catching a lot of fish and seeing lots of sunsets."

Katherine, who has made The New York Times' bestseller list for the last four consecutive weeks, is currently in the midst of a virtual book tour.

The mum-to-be's actor-turned-politician father, Arnold, 72, told Extra in January that he's excited about the prospect of becoming a grandfather, but that he knew it was her decision as to when that would be.

"I don't push it because I know it's going to happen eventually. It's up to Chris and her when they want to do that." He added, "I'm looking forward it to, yes."