The blank slate here refers to negative morning pregnancy test paper. Negative morning pregnancy test paper on the tenth day of frozen embryo transfer is considered to be related to short gestation time, embryo transfer failure, etc. If necessary, repeat the morning pregnancy test paper test after 3~5 days or go to the hospital for blood test. Since women are generally positive for 10~14 days after embryo transfer, the morning pregnancy test paper is positive. Now frozen embryo transfer on the tenth day of early pregnancy test paper is negative, considering the short gestation time, embryo transfer failure and so on, so if necessary, need to repeat the early pregnancy test paper test after 3~5 days or go to the regular hospital to draw blood HCG check. For women with frozen embryo transfer, they should regulate the supplementation of progesterone preparation under the guidance of doctors, and if pregnancy is confirmed, they should pay attention to rest and prohibit sexual life. For women who want to get pregnant through IVF, it is recommended that they go to the reproduction center of regular hospitals and under the guidance of doctors.