A pregnant woman escaped serious injury during a traffic wreck along Highway 29 Friday morning.

Alma Arroyo, 34, of Middletown, was driving south along the highway, just north of Robert Louis Stevenson Park, in a 1999 Chevrolet Trailblazer at 8:15 a.m., when she wrecked the vehicle, California Highway Patrol officer Jaret Paulson said.

“She was traveling at an unsafe speed for the wet and rainy roadway conditions,” Paulson said.

Arroyo lost control of the vehicle as it spun around and hit the hillside on the west side of the road, Paulson said. The impact caused moderate injuries to Arroyo according to CalFire. Her passenger, a 2-year-old boy, was not injured.

Arroyo was taken to St. Helena Hospital, Paulson said.