the first night
Pina te ha echado de casa la primera noche.
Pina kicked you out of the house on the very first night.
— Roma città aperta (1945)
Es la primera noche que pasa fuera de casa.
It's the first night she's spent away from home.
— Vivir (1952)
Solo la primera noche, se dice que trae mala suerte.
It is said to bring bad luck only on the first night.
— Devdas (2002)