This will be the first child for both Keri and Shane, who have been together for several years. The bundle is expected to arrive at this summer.
Keri played the title role of Felicity Porter in the hit WB drama from 1998 to 2002. In 2006 she appeared opposite Tom Cruise in Mission: Impossible 3.
Her new movie, the indie romantic comedy Waitress, was directed by the late Adrienne Shelly and screens next week at the Sundance Film Festival. The Cover Girl spokeswoman will also star later this year in August Rush with Robin Williams and Girl in the Park with Kate Bosworth.