The mother, whom KOMO News has chosen to identify only as "Jill," says the clinic kept the information "confidential."
When she signed a consent form, Jill figured it meant her 15 year old could go to the Ballard Teen Health Center located inside the high school for an earache, a sports physical, even birth control, but not for help terminating a pregnancy.
"She took a pregnancy test at school at the teen health center," she said. "Nowhere in this paperwork does it mention abortion or facilitating abortion."
Jill says her daughter, a pro-life advocate, was given a pass, put in a taxi and sent off to have an abortion during school hours all without her family knowing.
"We had no idea this was being facilitated on campus," said Jill. "They just told her that if she concealed it from her family, that it would be free of charge and no financial responsibility."
The Seattle School District says it doesn't run the health clinics at high schools. Swedish Medical Center runs the clinic at Ballard High and protects the students' privacy.
T.J. Cosgrove of the King County Health Department, which administers the school-based programs for the health department, says it's always best if parents are involved in their children's health care, but don't always have a say.
"At any age in the state of Washington, an individual can consent to a termination of pregnancy," he said.
But Jill says she not only didn't have a say in her daughter's abortion, but also didn't know about it.
"Makes me feel like my rights were completely stripped away."