Cary López Alvarado, a 28-year-old U.S. citizen nine months pregnant, was detained by immigration agents in Hawthorne, California on Sunday. López Alvarado said agents shoved her during the arrest, causing her to lose her balance as she tried to protect her stomach. After her release, she experienced sharp stomach pains and was hospitalized for one day for monitoring. López Alvarado and her cousin Alberto Sandoval, also a U.S. citizen, were doing maintenance work when agents in Border Patrol uniforms arrived in marked CBP vehicles following a white pickup truck carrying two undocumented workers, including her partner Brian Nájera.