The 31-year-old actress shared a maternity photo taken by boyfriend and "beautiful hearted baby daddy" Ethan DeLorenzo, reported People magazine.
"Womb to womb, To beating wing, I climbed out of the eternal, And into the shape of me," Malone, 31, captioned the Polaroid of herself cradling her baby bump.
"Some words I wrote years ago when I was thinking about my own mother. And the woman she was when she had me. And the woman I was reaching to become," she wrote.
The "Batman v Superman: Dawn of Justice" star gave another glimpse into life with her photographer boyfriend in a recent post.