Currently 12 weeks pregnant, the placenta position is low, later on it may increase with the pregnancy week, the lower segment of the uterus forms and stretches, increasing the distance between the inner cervix and the edge of the placenta, so that the placenta slowly moves up the situation, at present it cannot be diagnosed as low placenta or placenta praevia. At present, if the placenta is low, first of all, pay attention to rest, reduce walking, avoid straining and staying up late, avoid sitting for a long time, and forbid sexual life. If there is no bleeding, you can move around appropriately, and you must pay attention to safety when going up and down stairs. Once there is bleeding, you need to take bed rest and avoid walking, and at the same time, you should do routine labor checkups and observe your symptoms closely. If there is bleeding, you need to go to the hospital promptly, and if necessary, consider hospitalization for observation, fetal monitoring, and good symptomatic treatment in case of emergency.