A D.C. special education student said she was impregnated by her teacher and that school officials were aware of the sexual relationship but did nothing to stop it, according to a lawsuit filed in federal court.

Ayanna Blue, who is now a 20-year-old mother, said that she began having sex with Robert Weismiller, 58, when she was an 18-year-old at the Transition Academy at Shadd, the lawsuit said. The school is for students who have been identified as “emotionally disturbed.”