Vanessa Kirby has some fantastic news.

The actress is pregnant with her first child. The 37-year-old revealed the news on the red carpet at a panel event for The Fantastic Four: First Steps during the CCXPMX Film Festival in Mexico City May 31, cradling her baby bump in a shimmering, high neck, sleeveless teal Schiaparelli gown.

The British star, who plays Sue Storm—and superhero the Invisible Woman—in the Marvel franchise’s second reboot, was joined by costars Pedro Pascal (Reed Richards / Mister Fantastic), Joseph Quinn (Johnny Storm / Human Torch) and Ebon Moss-Bachrach (Ben Grimm / The Thing).

The actress also cradles her baby bump while wearing a black dress in a short promo video with her three costars, which was filmed in Mexico City and posted on Marvel’s Instagram page June 1.

E! News has reached out to the Crown alum’s rep for further comment and has not heard back.

Vanessa has been in a relationship with retired lacrosse star Paul Rabil for more than two years. He made it Instagram official in 2023, sharing pics of himself carrying Vanessa on his shoulders, hugging on a sandy beach and embracing on a night out, as well as a tribute to his partner.

Victor Chavez/Shutterstock

“From the very minute we first met in Des Moines, around the world and back,” the athlete—a co-founded Premier Lacrosse League—wrote in November of that year, “life is far better, more purposeful and more beautiful with you.”

The two recently vacationed together in Saint Kitts and Nevis in the Caribbean.

“What a beautiful time away to stop for a second to appreciate the people you most love,” Vanessa wrote on Instagram in April, alongside pics from their trip, including a photo of herself and Paul getting cozy on a patio sofa. “Thank you so much @fsnevis for making us feel so welcome and for having us in such a special place.”

You can watch Vanessa and the rest of her costars in The Fantastic Four: First Steps when it hits theaters July 25. Meanwhile, check out how Marvel cast its superheroes in its films…