Stepping out at CinemaCon in Las Vegas, the 29-year-old didn't have to say a word as she proudly showed off her bump.
Looking sultry in a black form-fitting Versace dress, Megan was promoting her new film, Teenage Mutant Ninja Turtles: Out of the Shadows, with co-star, Will Arnett.
While Megan is yet to officially comment on the exciting news, sources close to the TMNT leading lady have confirmed the pregnancy to People.
The brunette actress is already mum to her two sons, three-year-old Noah Green, and two-year-old Bodhi Green, with her estranged husband Brian Austin Green.
The couple, who were married for five years, confirmed their separation after filing for divorce in August last year.
Despite the split Megan and the 42-year-old, who were together for over 11 years, are regularly spotted together looking after their boys.
“They’re on friendly terms for the sake of their kids,” a source explained to Us Weekly at the time of the break up.
In 2014, the actress candidly spoke about marriage to with *Men's Health.
"You can't live in a fantasyland and think that everything's going to be perfect all the time. You will go through phases where you're just not getting along."
"You're not communicating well. That's going to happen, and it's going to feel impossible to you sometimes. It might not even make sense to you sometimes. Arguments are normal," she said honestly.
"You have to be patient and sit through that and remember that this is a part of human communication and interaction…"
Before adding, "Brian is my soul mate!"
"I happen to believe that. He's definitely meant to be the father of my children. That makes it easier for me to work through things, because I always see the spiritual side of things."
"I look at the end game."
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