 Two weeks after retrieval, follow-up instructions will be reviewed. Patients will be advised to refrain from embryo transfer for a minimum of 2 years after chemotherapy. Patients will not be permitted to undergo embryo transfer for a minimum of one year after completing chemotherapy and only after clearance for pregnancy has been obtained from their medical oncologist. Patients will be followed for five years on an annual basis with a follow-up telephone call from one of the investigators inquiring about health status see patient follow-up data sheet. A pregnancy registry will be created for any pregnancy occurring following enrollment in the study. Detailed pregnancy outcome will be collected between age 2-5 years see baby follow-up data sheet attached. 