I just lay there

A young female came to the ER with lower abdominal pain. During the exam and questioning the female denied being sexually active. The doctor gave her a pregnancy test anyway and it came back positive. The doctor went back to the young female's room.

Doctor: "The results of your pregnancy test came back positive. Are you sure you're not sexually active?" Patient: "Sexually active? No, sir, I just lay there."

Doctor: "I see. Well, do you know who the father is?"

Patient: "No. Who?"