Mel Gibson's Former Mistress Pregnant?

Was the new woman in Mel Gibson's life hiding a burgeoning baby bump when she showed up on the arm of the actor at the Wolverine premiere in Hollywood last month? 

We only ask because, according to a US tabloid, the Braveheart star's former mistress, Oksana Grigorieva, is expecting his child.

The actor's wife of 28-years filed for divorce in April, shortly after Mel was photographed in an intimate embrace with an attractive brunette – believed to be Oksana - on a Costa Rican beach.

Maybe baby bump?

Now the National Enquirer is reporting that Mel's new lady love is three month's pregnant, and that he recently dropped the bombshell to his seven children.

“In late April, Mel gathered his children at the family home in Malibu and broke the news that Oksana is pregnant, and he expects them to accept the baby as a new sibling,” an insider tells the tabloid.

Apparently, Mel's oldest children, 26-year-old twins Edward and Christian, didn't take the news well.

“They are quite upset,” the source continues. “Even though Mel assured them the pregnancy was unplanned, they’re furious with him and say they’re going to take steps to protect their inheritance, which they feel is in jeopardy.”