Subtle progesterone rise on the day of human chorionic gonadotropin administration is associated with lower live birth rates in women undergoing assisted reproductive technology: a retrospective study with 2,555 fresh embryo transfers

Abstract

To evaluate the association between serum P levels on the day of hCG administration and pregnancy outcome in women undergoing controlled ovarian hyperstimulation, prevention of premature ovulation by GnRH analogues, and fresh ET after 5 days of embryo culture.