This study is recruiting patients receiving cancer treatment that includes a type of drug called an "alkylating agent", which may cause side effects such as damage to the ovaries (female reproductive organs). The goal of the study is to determine the feasibility of conducting a cross network, multi-site, randomized clinical trial of triptorelin among newly diagnosed adolescent and young adult (AYA) female cancer patients age <40 years (exclusive of breast cancer). The triptorelin used in this study may affect how different parts of your body work such as your liver, kidneys, heart, and blood. Participants will receive the medications through an intramuscular (IM) injection in their arm. Study participation is expected to last up to three years.