The low number of follicles found during IVF treatment after ovulation with conventional regimen is considered to be caused by poor ovarian function and inappropriate ovulation regimen. If ovarian function is poor, medications can be applied before the second ovulation treatment to improve ovarian function as much as possible and to change the ovulation treatment regimen, preferably to a microstimulation regimen or an ultrashort regimen, in order to expect more follicles after ovulation. It is possible to change the medication used to promote ovulation. If the ovarian dysfunction cannot be corrected and the number of follicles is low after changing the regimen and medication, you can temporarily refrain from transferring and after accumulating embryos from several ovulation cycles, select embryos of better quality for transfer, which will increase the chances of successful conception after transfer.