Megan Fox is pregnant with her fourth child and first with Machine Gun Kelly.The actress posted a sultry, dark photo on Instagram sharing that she and the musician are expecting their first baby together.”Nothing is ever really lost. welcome back,” the 38-year-old captioned a snap cradling her baby bump on Nov. 11 (Monday).The Jennifer’s Body star is seen covered in black liquid and tagged MGK in the picture.This will be Fox’s fourth child. She shares sons, Noah, 12, Bodhi, 10, and Journey, 8, with ex-husband Brian Austin Green.Kelly has daughter, Casie, 15, from a previous relationship.READ MORE: MGK Opens Up on Father’s Childhood Murder Trial for First TimeEarlier this year, Fox revealed that her engagement to MGK had been called off, although the two never officially broke up.She appeared on an episode of Alex Cooper’s Call Her Daddy podcast, where she discussed her 2023 book Pretty Boys Are Poisonous: Poems: A Collection of F**ked Up Fairy Tales. In the book, she wrote several poems about her relationship with MGK.Cooper initiated, “I feel like everyone has such like an opinion on you guys’ relationship. You know, you got engaged, then I think it was called off, then we don’t know what’s going on with you.””I think what I’ve learned from being in this relationship is that it’s not for public consumption. So I think as of now, I don’t have a comment on like the status of the relationship per se,” Fox replied, though she added “there will always be a tether to him no matter what.”The two met on the set of the movie Midnight in the Switchgrass in March of 2020. A few months later, the actress appeared in the music video for MGK’s “Bloody Valentine,” which was featured on his debut pop-punk record Tickets to My Downfall.MGK popped the question in January 2022.25 Rock + Metal Bands Featuring Kids of RockstarsRock and metal bands featuring kids of rockstars.Gallery Credit: Lauryn Schaffner