Blake Lively surprises with baby reveal on red carpet for 'Pokemon: Detective Pikachu'

She came out to support her husband's film and revealed that she's expecting.

Surprise! Blake Lively and Ryan Reynolds are expecting their third child.

The duo, who are already parents to 4-year-old daughter James and 2-year-old Inez, were on hand at the premiere of Reynolds' new film "Pokémon: Detective Pikachu" Thursday in New York, and the actress stunned as usual -- but with the addition of a growing baby bump.

Lively didn't hide the bump at all, showing it off in her gorgeous yellow dress.

The couple was all smiles as Reynolds stopped to enjoy the moment with his pregnant wife. The looks on their faces said it all.

The two constantly support each other at film premieres and on social media, with Thursday's reveal adding to the excitement of the "Deadpool" actor's new film.

In the past Reynolds has also credited Lively with helping him during key moments in his life, including reconciling with his father before his father's Parkinson's battle and death in 2015.

Reynolds recently told People magazine that the support also extends into their home life, for the sake of their kids. In fact, they trade off working to make sure one parent is at home with the two girls.

"Blake and I don’t do movies at the same time," Reynolds said. "If she is doing a movie in Thailand and I am doing a movie in Vancouver, we would just never see each other. We operate as a unit and that works really well for us."

"The kids stay with us and the family stays together, and that is where home is," he added. "So if we are in Spain or Utah or New York, as long as we are together, we’re home.”

As for his new film, Reynolds is happy to work on something that his young girls can watch. "Deadpool" isn't exactly 2-year-old friendly.

"It’s so cool to see my girls pumped," he said.

Last year Lively spoke to "GMA" about trying her best to give her daughters a regular life, despite their parents' fame.

"Our kids have very normal lives," she said, "as much as that's possible."