Inclusion Criteria:  Informed consent form dated and signed Female, aged 18 years or above Patient undergoing COS for IVF/ICSI, oocyte vitrification or oocyte donation cycles in IVIRMA Bilbao clinic Willing to comply with all study requirements  Exclusion Criteria:  Simultaneous participation in another clinical study that, at researcher's criteria, could interfere with the results of this study. Any significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study, or the participant's ability to participate in the study.