Preparing for pregnancy next time after embryonic arrest requires blood tests, embryo chromosome tests, semen tests, ovarian function tests and so on. 1. Blood test: if you are pregnant again after the fetal arrest, you need to take detailed blood tests, such as serum human chorionic villus, serum progesterone, estradiol, thyroid function, fasting blood sugar, antinuclear antibody, etc., to avoid abnormalities in blood indexes that may cause the fetal arrest, and so on. 2. Embryo chromosome examination: If the development of the fetus stops due to abnormal coloring, couples who are preparing for pregnancy should go to regular hospitals for embryo chromosome examination to avoid fetal arrest again. 3. Semen examination: Semen examination is mainly for men who are preparing for pregnancy, if men have weak sperm activity, high sperm deformity rate, etc., it may also lead to fetal arrest after successful conception, for men with poor sperm quality, they can be selected or conditioned through scientific means. In addition to this, ovarian function tests, follicle monitoring, immune tests, etc. are also needed before pregnancy preparation. It is recommended that couples who are preparing for pregnancy maintain a good state of mind, develop good living habits, pay attention to rest, and avoid staying up late for a long period of time.