In her first television interview since going public with Mel Gibson, Oksana Grigorieva tells CNN she isn't sure she'll wed the 53-year-old actor.

"We don't know yet," says Grigorieva, 39, who is pregnant with Gibson's baby. "We haven't really talked about it."

Get the latest Mel Gibson news

She also says they have opted not to learn the sex of the child. "I'm already buying things in gender-neutral colors. It's very cute," says Grigorieva, who also has a 12-year-old son, Alexander, with actor Timothy Dalton. Grigorieva, who is signed to Gibson's record label, was first photographed with Gibson in 2008 on the set of his movie Edge of Darkness.

They made their first public appearance together at a Los Angeles screening of X-Men Origins: Wolverine on April 28 - the same month Gibson and his wife of nearly 30 years (and mother of his seven children), Robyn, filed for divorce.

Despite intense scrutiny, Grigorieva says her relationship with Gibson has inspired her music. The actor directed four of her music videos. "If you think about it, every talent needs a serious push and help from somebody who is stronger, because it's pretty much impossible for anybody to succeed in this industry," she says. "So I've become very lucky, and I'm very grateful."

Adds Grigorieva, "You don't control the situations or the people you meet. I did not plan this. I'm just doing what I've always been doing. It's not like I've changed my goals at all." Before beginning press for the new album, Beautiful Heartache, she says Gibson even gave her some advice: "Just be myself and speak the truth. What I most like to talk about is my music and Beautiful Heartache. And that's pretty much it."