Relationship between morphological scores of embryos in fresh single embryo transfers and serum β-hCG values at 14 days and 14–18-day serum β-hCG doubling values post-transfer

What is the effect of embryo morphology score on 14-day β-HCG levels and 14-18-day β-HCG doubling values, and do they have differences in day-3 embryo or day-5 blastocyst transfers?