Inclusion Criteria:  Women with a chemotherapy-induced (CIA) amenorrhea who asked for post-cancer fertility follow-up at the University Hospital of Lille, France. Women between 25 to 35 years age at inclusion Chemotherapy protocol: FEC 100 (3 cycles) + docetaxel (3 cycles  Exclusion Criteria:  Women without CIA Women who refuse to participate in the study Women older than 35 years at inclusion Women who received another chemotherapy protocol