Brian Austin Green is father of pregnant Megan Fox's third baby

Megan Fox surprised followers this week when she debuted a prominent baby bump at an event in Las Vegas. Having filed for divorce from husband Brian Austin Green in August 2015, fans were keen to find out who the father of her third child is and whether the couple had reconciled. "Of course Brian is the father!" a source confirmed to People. "They never stopped loving each other and they will never stop being devoted parents to their boys."

The pregnancy did come as a surprise to the couple who are "very excited" and are "continuing to work on their marriage and are living together again," a second insider revealed.

TAP TO VIEW GALLERYMegan Fox Surprise! Megan Fox debuted her baby bump in Las Vegas this week

The down-to-earth star even poked fun at speculation surrounding her baby's paternity by posting a photo on her Instagram account that dismissed some of the actors whose names were tied to the headlines. The actress captioned the photo featuring herself posing with Shia LaBeouf, New Girl's Jake Johnson and her Teenage Mutant Ninja Turtles co-star Will Arnett, with, "#Notthefather."

#notthefather

A photo posted by Megan Fox (@the_native_tiger) on

Megan, 29, filed for divorce in August after five years of marriage and 11 years together. But despite their split, the couple have been regularly seen together co-parenting their two young sons Noah, three, and two-year-old Bodhi.

Brian, 42, has also been looking after the boys while Megan has been busy working on her new movie Teenage Mutant Ninja Turtles: Out Of The Shadows. "They both loving being parents," the source added.

Megan Fox and Brian Austin Green A source confirmed that Brian is "of course" the baby's father

Megan and Brian started dating back in 2004 after meeting on the set of the series Hope and Faith. The actress, who was 18 at the time, said she felt an instant attraction to Brian, who is 13 years older, and the pair soon became an item.

Despite getting engaged in 2006, the pair called off their engagement in 2009 with Brian saying: "Marriage isn't a realistic goal for someone who is 23."

The couple rekindled their relationship, however, and Brian proposed again in June 2010, with the pair getting wed just 24 days later. "I've never been more sure of anything in my life," Brian said after their wedding. "It was the absolute perfect start to what we hope will be an amazing life together."

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