The patient has primary amenorrhea. Her secondary sex characteristics are normal, indicating an adequate exposure to estrogen, hence ruling out hypoestrogenism and hypopituitarism. Although her external genitalia examination is normal, the proof of the lack of an end-organ abnormality ( such as Imperforate hymen / transverse vaginal septum/ unresponsive endometrium) is that she was able to bleed after being given progesterone. This also proves that her endometrial mucosa was primed with estrogen.