apr 16, 2023 · many times we leave embryos until day 6, since sometimes the blastocysts go slower and expand on day 6, we can have a good embryo on day 6 with a high score. sep 15, 2024 · the final embryo grade is usually received when the embryo reaches the blastocyst stage, which can be on days 5, 6, or 7 of culture. Embryo culture is a process.
