In their open-label, multicentre, randomised, non-inferiority trial of home-based ovulation monitoring in the management of frozen-thawed embryo transfers (FETs), Tjitske Zaat and colleagues showed ...

In Tjitske Zaat and colleagues’ study,1 fewer than 3% of patients in natural menstrual cycles were administered exogenous progesterone for luteal phase support. In their Comment,2 Shari Mackens and ...