If the pregnancy test is not deepened, it may be that there is no implantation, or it may be a biochemical pregnancy, but the relationship between the lack of implantation and biochemical pregnancy needs to be re-established. Biochemical pregnancy mainly refers to the combination of sperm and egg to develop into a fertilized egg, but did not implant, the etiology of which is still unclear, and is mostly considered to be related to the woman’s age, endocrine status, immune status, the quality of the male partner’s sperm, the quality of the embryo and other factors. Usually there are no abnormal manifestations, only some patients may have symptoms such as vaginal bleeding and lower abdominal pain, but the degree is mild and can be relieved by themselves. In addition, when using pregnancy test paper to detect in early pregnancy, the phenomenon of pregnancy test paper not deepening may also occur. Generally, no special treatment is needed, but you should pay attention to the amount of vaginal bleeding and the decline of human chorionic gonadotropin in the blood serum. It is recommended to consult a doctor to clarify your situation and actively cooperate with the doctor to take appropriate treatment measures.