Chris Pratt and Katherine Schwarzenegger are expecting their second child

Chris Pratt and wife Katherine Schwarzenegger are expecting baby number two!

According to People, the author, 32, is pregnant with her second child and is due next year.

READ MORE: Sex and the City star Chris Noth accused of sexual assault by two women

The exciting news comes days after Pratt, 42, shared a loving birthday tribute for Schwarzenegger on her 32nd birthday.

"Happy Birthday Honey! You are such a wonderful wife, mother, step-mother, and life partner. I simply can't imagine how lost I'd be without you," the Guardians of the Galaxy star wrote.

"You're beautiful, tough as nails, reasonable, deeply thoughtful, extraordinarily smart, you're a complete boss, eternally driven and you communicate like no other.

"Thank you for everything. Thank you for being so instrumental in my growth over the past few years. We fit so perfectly into each other's lives that our Union is a daily reminder that God is looking out for us."

READ MORE: Bruce Springsteen sells song catalogue in $700 million deal

Pratt and Schwarzenegger are already parents to daughter Lyla Maria, 16 months. The Jurassic World actor is also the father of nine-year-old son Jack, whom he shares with ex-wife Anna Faris.

Pratt has previously opened up about his interest in expanding their family. In an interview with E! News, the Avengers star said that he'd "love" to have more kids with his wife and teased he's open to having "as many [kids] as the man upstairs will provide."

Pratt and Schwarzenegger married in June 2019 after a six-month engagement. The actor was previously married to Faris from 2009 to 2018