Hayek is currently starring in Ugly Betty

The 40-year-old is set to wed businessman Francois-Henri Pinault but no other details were given. It is not known when the baby is due.

Hayek is currently enjoying success as an executive producer on hit comedy drama Ugly Betty.

She also stars in the show as magazine editor Sofia Reyes. Hayek was nominated for an Oscar for biopic Frida in 2002.

Her other films include After the Sunset and Spy Kids 3-D: Game Over.

Hayek began her career acting in Mexican TV soaps before moving to Hollywood in 1991. Her first break came opposite Antonio Banderas in the 1995 film Desperado.

Hayek's fiance is the chairman and chief executive of luxury goods company PPR, which owns designer labels including Gucci, Yves Saint Laurent, Stella McCartney and Balenciaga.