Mila Kunis baby news reveal that the 'Jupiter Ascending' star gave birth Tuesday night at the Cedars-Sinai.

Mila and fiancé Ashton welcomed their adorable bundle of joy they named "Wyatt Isabelle Kutcher."

To keep things interesting the new father teased fans and treated them to a guessing game. On the website Aplus.com, Kutcher posted baby photos and asked people to guess which photo is their daughter's.

"Here's your baby photo. Well, one of them is. Now can the helicopter please stop hovering over our house, there is a baby sleeping inside! And she's super cute," he wrote.

"Mila and I would like to welcome Wyatt Isabelle Kutcher to the world. May your life be filled with wonder, love, laughter, health, happiness, curiosity, and privacy. Can you guess which one is ours, or does it really matter? All babies are cute."

According to previous Mila Kunis baby news, Kutcher is the more nervous one between them.

A source close to the couple told People magazine, "He is a nervous wreck. They were hoping the baby would come this week because he's on hiatus [from his show Two and a Half Men]."

"He is incredibly excited for the baby. Mila just wants the baby to come out already!" Added the source.

The "That 70s' Show" co-stars broke Mila's baby bump news earlier this year, and soon after their engagement. The pregnant Mila and fiancé Ashton plan to get married after giving birth.

The two have also recently purchased a 7,351-square-foot mansion in Beverly Hills for $10 million.

Their new house reportedly "sits on about a half-acre of land in the hills and boasts four bedrooms and three bathrooms, and it offers plenty of privacy."

Stay tuned for more Mila Kunis baby news right here!