Vanessa Kirby is bumpin’ along.

The star of “The Crown” casually announced she was pregnant with her first child during a photocall for her upcoming film, “The Fantastic Four: First Steps,” in Mexico City on Saturday.

She showcased her growing bump on the red carpet, wearing a halter-style green metallic gown.

Kirby, 37, posed, cradling her bump with one hand, and later smiled alongside her co-stars Pedro Pascal, Joseph Quinn and Ebon Moss-Bachrach.

The actress portrays Sue Storm, the Invisible Woman, in the upcoming Marvel film set for release on July 25.

Page Six has reached out to Kirby’s rep for comment but did not immediately hear back.

Page Six exclusively revealed in December 2024 that Kirby and Paul Rabil were engaged after two years of dating.

The actress from “The Crown” and the professional Lacrosse athlete were initially linked in a romantic way in October 2022 when they were spotted holding hands in New York City.

The couple took their relationship public that November when Rabil, 39, shared a romantic tribute to Kirby via Instagram.

“From the moment we met in Des Moines, through all our adventures globally and returning home, life is richer, more meaningful, and more beautiful with you,” he expressed.

The athlete included several photos with the “Mission Impossible: Fallout” star, including one of Kirby on his shoulders and a second one of them on the beach.

Kirby and Rabil, however, have since kept their romance under wraps, rarely posting each other online.

They also haven’t disclosed the details of how they met.

Page Six has also reached out to Rabil for comment but did not immediately hear back.

Kirby previously dated Dua Lipa’s now-fiancé, Callum Turner, from 2015 to 2020.

As for Rabil, he was wed to fellow athlete Kelly Berger from 2014 to 2017 and previously dated Eiza González.