"We are beyond excited to embark on this beautiful next chapter of parenthood in both peace and privacy," Brown and Bongiovi wrote in their joint post.

Millie Bobby Brown has revealed she adopted a baby girl -- and fans are mind-blown that the young actress they watched grow up on Stranger Things is officially a mother.

“I really want a family. I want a big family. I’m one of four, he’s one of four. So it is definitely in our future,” she continued.