Passage: Medina has never revealed the father of the child nor the circumstances of her impregnation. Escomel suggested that she might not actually know herself, as she "couldn't give precise responses". Lina's father was arrested on suspicion of child sexual abuse, but he was released due to lack of evidence and the biological father was never identified. Her son grew up healthy. He died in 1979 at the age of 40.In young adulthood, Medina worked as a secretary in the Lima clinic of Lozada, which gave her an education and helped put her son through high school. She married Raúl Jurado, who fathered her second son in 1972. As of 2002, they lived in a poor district of Lima known as "Chicago Chico". She refused an interview with Reuters that year, just as she had turned away many reporters in years past.

Question: What didn't Medina reveal regarding her impregnation?
the father of the child nor the circumstances of her impregnation