Tom Hiddleston and Fiancée Zawe Ashton Expecting First Baby Together

The 37-year-old Mr. Malcolm's List actress made her expanding pregnancy belly visible on Wednesday during a special showing of the historical drama in New York City.

According to Vogue, who revealed the couple's pregnancy with a behind-the-scenes look at her pre-event beauty session

, Ashton looked absolutely gorgeous as she made her way down the red carpet wearing a stunning bead-embellished tulle gown by Sabina Bilenko Couture.

Though Hiddleston, 41, was not in attendance, Ashton was joined by costars Freida Pinto, Sope Dirisu

Theo James and Sianad Gregory, along with director Emma Holly Jones.

Ashton ignited engagement speculations at the 2022 BAFTA Awards in March when she was spotted with a ring on her wedding finger. 

PEOPLE revealed the couple's engagement a few days after their appearance on the red carpet.