The ingredient in Jin Yuting is levonorgestrel, there are no extensive case reports or rigorously controlled studies of human fetuses using the drug, it is uncertain whether it will retard fetal genital development, rare reports of masculinization of female infants, most of which are clitoral enlargement and do not require surgical treatment. Levonorgestrel tablets for contraceptive failure and conception is considered early pregnancy use. Whether or not the use of the drug in the first month of pregnancy has any effect on the fetus is an all-or-nothing concept; if the fetus is able to continue to develop, there is no effect on the development of organs in the later stages of fetal development, and if there is an effect, the phenomenon of embryonic diapause will occur directly. If there is a history of medication in the early stages, a detailed ultrasound is required at 18-22 weeks. Regular checkups are needed during pregnancy to avoid random use of medication and to seek timely medical attention if there are uncomfortable symptoms.