A 31-year-old woman presents to the clinic for pregnancy counseling. The nurse takes her medical history and learns that she is currently under orthopedic care for a torn labrum in her right hip. She has a history of gastric ulcers. Her medications include a multivitamin, vitamin C, ibuprofen, and Cytotec prescribed by her orthopedist. Which of these topics would be the nurse’s highest priority in communication with this patient?