Megan Fox, “wasn't surprised” by the news and that she is “very happy for them.”

The insider says that Fox believes that “Brian is a devoted dad and will be great with a new baby.”

They continued, “She's happy for her kids that they will be getting a new sibling. And knows they are excited about it. She wishes Brian the best and thinks it's a great thing.”

The former couple have three sons together, Noah, 9, Bodhi, 7, and Journey, 5. Green also has a 19-year-old, Kassius, from a previous relationship.

Green and Burgess celebrated their first anniversary together about three months ago, a few days before Fox and Green legally finalized their divorce. Fox recently became engaged to her fiancé, Machine Gun Kelly, who proposed to Fox with a diamond and emerald ring representing their two birthstones.

In his post celebrating his anniversary with Burgess, Green wrote on his Instagram, “1 year of accepting me in a way I've never been loved before,” with the hashtag, “#damnimlucky.”

Burgess shared a montage of moments with Green over the year, writing a long message to him in her caption.

“1 year ago yesterday my whole world changed,” she wrote. “I just didn’t know it yet. You’re everything I’ve ever wanted in 1 person and the way you love me is something I couldn’t even have dreamed of. I never knew it existed until you. I love you baby, and I love doing life with you. 1 down, and all of them to go. :) Thank you so so much to @brianandsharnafans for this amazing edit. We both saw it and loved it. We appreciate you.”