The goal of this observational study is to determine multiomics patterns related to global embryo quality to help overcome the limitations of conventional embryo quality assessment. The main question it aims to answer is:
• Do discarded blastocysts that reach the blastocyst stage (days 5-6) show characteristic multiomics profiles which correlate with chromosomal abnormalities, providing insights into embryo viability?
For that, patients undergoing an IVF treatment will be asked to donate their clinically discarded 5/6-day embryos (those that do not meet clinical criteria to be used for reproductive purposes). Participation in the study will not interfere with the planned IVF treatment. Patient participation is limited to signature of the informed consent to donate embryos and no other study-specific procedures will be performed on participants.