Megan Fox revealed that she was pregnant with her third child earlier this week when she showed up to CinemaCon in a tight black dress that very obviously showed off her growing baby bump. Since Fox has not yet made an official pregnancy announcement, people quickly started questioning who the father is, as she filed from divorce from her estranged husband Brian Austin Green last summer.

The 29-year-old actress and Green have been spending a lot of time together lately, as they are still co-parenting their two sons, and sources have now confirmed that he definitely is the father of her third child.

"Of course Brian is the dad!" said one source, who has knowledge of the couple's current situation. "They never stopped loving each other and they will never stop being devoted parents to their boys."

The source went on to explain that they were surprised when they found out she was pregnant but added that they are "very excited." They are apparently living together again and "continuing to work on their marriage."

Fox even took to Instagram to make a baby daddy joke following the pregnancy news by posting a photo collage of photos with her and three of her former co-stars. "#notthefather," she captioned the photo, which included pictures of her and Shia Labeouf, Jake Johnson and Will Arnett.

 #notthefather

A photo posted by Megan Fox (@the_native_tiger) on Apr 12, 2016 at 12:47pm PDT

She and Green have been together since 2004 and married since 2010. They officially split in June 2015, and she then filed for divorce the following month, citing "irreconcilable differences," although the divorce is still pending. No paperwork has been filed since Jan. 29, and there are no future hearings scheduled, so despite having a baby on the way, it is still unclear if they plan to go through with the divorce or not.

One insider has explained that the divorce "will likely be put on hold for a while." "This pregnancy was not planned," the insider added. "But when they found out they were extremely happy. Megan and Brian love being parents. They are working really hard to be together and one unit-not only for the children, but also for each other. They are looking forward to the arrival of their new baby."

On the other hand, other sources have said that since the pregnancy happened out of nowhere, she has no plans to drop the divorce. Since she makes most of the money, especially recently with her latest "Teenage Mutant Ninja Turtles" film, everything she has earned since their separation is hers. If they called off the divorce, that would change.