The strong positive test paper on the 19th day of IVF transplantation is considered to be a normal phenomenon, which should be strengthened with nursing care, medication, and regular obstetric examination. 1. Strengthen care: under normal circumstances, IVF transplanted into the uterine cavity will be in 2 to 4 days after the bed, in the transplantation of the 19th day has been the normal development of early pregnancy test paper test, strong positive is a normal phenomenon, at this time the main is to strengthen the care, pay attention to personal hygiene, reduce the mental stress, do not do sports and heavy physical labor, to bed rest. 2. medication: in the 19th day of IVF transplantation, but also pay attention to avoid coitus, should follow the doctor’s instructions to use progesterone, dydrogesterone, etc., to maintain the luteal function. 3. Regular labor and delivery examination: on the 19th day of IVF transplantation, you should follow the doctor’s instructions for regular labor and delivery examination, you should check the changes of HCG through blood, and you also need to carry out ultrasound and other examinations to make it clear that you are pregnant in the uterus. If there is any abnormal symptom, you need to consult a doctor in time to clarify the reason and intervene in time to avoid delaying the condition.