However, when examined during the day prior to her period, the labia minora were swollen and dusky purple in color. The clitoral glands were congested and palpation of the clitoral shaft revealed substantial tumescence. Genital fluid was oozing freely from the introitus. The uterus was at lest twice the size it was during the follicular phase and the parauterine structures were thickened and tender on palpitation. During the bimanual examination, the patient experienced an orgasm associated with weak vaginal contractions ?