Mila Kunis has finally opened up about being pregnant and her due date! The engaged Mila Kunis also revealed that Ashton Kutcher is learning Russian "twice a week" to prepare for their baby!

Pregnant Mila Kunis opened up about her due date and engagement to Ashton Kutcher for the first time on "The Ellen DeGeneres Show" Friday. Watch her interview below!

"We were actually able to hide it for a very long time. I know. It's amazing," Mila Kunis told Ellen about her baby bump.

When asked about her due date, pregnant Mila Kunis didn't give a specific time of year, but assured her baby would arrive in 2014!

"Some time this year. I promise you," she teased. "It will be this year."

The "Jupiter Ascending" star also declined to reveal her baby's gender, but rumors have suggested that Mila and Ashton Kutcher are expecting a girl.

The expecting mother also revealed to Ellen that she and Ashton Kutcher have picked out a name but they chose to keep that private!

During her interview, Mila excitedly shared that her future hubby Ashton has been learning how to speak Russian for her (Mila was born in what is now Ukraine, and moved to America when she was a teenager).

"He's learning Russian so he can speak to the baby in Russian?" Ellen asked.

"He's been taking classes for probably like six months now," Mila told DeGeneres of the "Two and a Half Men" actor. "He does it twice a week. A woman comes to the house to give him lessons...It's really, really great."

Kunis also talked about how she and Kutcher were able to keep their engagement a secret for a while.

"We were able to keep this private for two months-two months without anybody knowing. I think everybody assumed we've been engaged for so long that I was wearing the ring in public for two months and no photograph was ever...like nobody ever commented on a single photograph," the movie star recalled. "Like it was just not...they just decided not to acknowledge it for two months. It was amazing."