Nicole Perez-Krueger said in an e-mail Friday that hospital tests indicate that Jewel and the fetus are healthy.
The Texas Department of Public Safety says the singer and Erath County Commissioner Jim Pack were involved in the two-vehicle collision Friday at a rural intersection in Stephenville. The agency says Pack was driving a fire department truck with his lights and siren on while on his way to a grass fire.
Perez-Kreuger says the fire truck struck Jewel's vehicle. The accident is being investigated.
Jewel and her rodeo champion husband, Ty Murray, live in Texas.