She announced the happy news on Instagram.

Congratulations are in order for Hilary Duff! The actress is pregnant and expecting her third child — her second with husband Matthew Koma.

On Saturday, she announced the exciting news on Instagram with a video of Koma rubbing her stomach. "We are growing!!! Mostly me..." Duff captioned the sweet post. Koma shared the same clip on his grid, writing: "lol quarantine was fun. Baby #3 - 2021." He also jokingly tagged his location as "Pregnantville."

Soon, they will be a family of five, as the couple — who tied the knot in December — are already parents to daughter, Banks Violet, 2, and Hilary shares 8-year-old son, Luca Cruz, with her ex-husband, Mike Comrie.

Hilary Duff
Credit: Photo by Frazer Harrison/Getty Images

This summer, Duff discussed the possibility of expanding her family in the future. "We're obsessed with our kids and [we're like], 'Should we do one more? Is this a good time?'" she said during an interview with People, acknowledging the challenges of the coronavirus pandemic. "It's tough because everything is so uncertain. Like, is it safe to have a baby right now? We don't know. Can we hold on for two years or is work gonna be crazy?"

She added, "We're always kind of talking about it and toying with the idea, but nothing too serious yet." Obviously, the couple had a change of heart, and have joined the growing list of celebrities set to welcome babies in 2021.