Fantastic Beasts star Katherine Waterston revealed she’s pregnant with a surprise red carpet look

Congratulations are in order! Fantastic Beasts star Katherine Waterson (who plays witch Porpentina Goldstein in the magical franchise) revealed she’s pregnant with her first child at the London premiere of Fantastic Beasts: The Crimes of Grindelwald on November 13th. Better yet, she let her outfit do the talking and debuted a surprise baby bump. The actress, 38, has not yet commented on her pregnancy nor revealed the baby’s father, but her costars were seen lovingly touching her stomach on the red carpet.

Waterston “announced” the big news to the world in a gorgeous mustard yellow Calvin Klein dress and silver, open-toed stilettos.

The last time we saw U.K.-born Waterston out and about was at the film’s world premiere in Paris on November 8th, but her black The Row ensemble kept things decidedly under wraps.

We’re sending so many congrats Katherine’s way, and we can’t wait to see Fantastic Beasts: The Crimes of Grindelwald when it apparates into theaters on November 16th.