Presented by Natalia Suszczewicz, MD, OB & GYN, CFCMC, Procreatio Foundation, we review and discuss the article: Shaulov T, Zanré N, Phillips S, Lapensée L. The association between the type of progesterone supplementation and miscarriage risk in women who have had a positive pregnancy test following embryo transfer: a retrospective cohort study. Arch Gynecol Obstet. 2023.