The purpose of this study is to see how the cancer treatment affects the ovaries. Cancer treatment can make it hard for a person to conceive a child in the future. It may also bring on early menopause. We will check blood levels of hormones that the ovaries produce. We will do this before, during, and after the cancer treatment. We will also ask the patient to fill out questionnaires about their menstrual cycle (periods) and information about your health and pregnancies. This may help us learn which women will be more likely to have early menopause.