Unfortunately, the BCL6 marker was not validated during egg retrieval cycles and should not be obtained in that same cycle. Biopsy at the time of egg retrieval, while convenient for the provider and patient, occurs too early in the cycle to detect the presence of BCL6. Medications used during the egg retrieval cycle could impact results and do not represent an accurate portrayal of the uterine lining during an embryo transfer or natural cycle. It is suggested to wait until the next cycle after the egg retrieval cycle to obtain an optimal biopsy.