Q. A 30-year-old woman presents to the OB-GYN outpatient department with a 6-month history of dysmenorrhea and dyspareunia. She reports that she and her partner have been attempting to conceive for the past year without success. Her menstrual cycles are regular, but she experiences significant pain before and during menstruation that has progressively worsened. On pelvic examination, there is tenderness in the posterior cul-de-sac and fullness near the ovaries. Her urine pregnancy test is negative, and her pelvic ultrasound shows no abnormalities. What is the best next step in the management of this patient?