BELLINGHAM, WA – A Spokane fertility doctor is facing a lawsuit brought by an Idaho woman who claims he used his own sperm to impregnate her.

KOMO reports 67-year-old Sharon Hayes sought treatment from Dr. David Claypool in 1989.

She says he had promised that a college or medical student who matched her preferences and passed a health screening would be the donor.

But her daughter from the procedure, 33-year-old Brianna Hayes, learned from a genealogy website that Dr. Claypool was her biological father.

She also discovered that she has at least 16 half-siblings in the area.

Brianna says she’s enjoyed getting to know her half-siblings, but the revelation has devastated her mother.