In normal early pregnancy, if the baby is stable, there will be no brown discharge. If brown discharge appears at 7 weeks of pregnancy, it is not normal. The most common cause of brown discharge is pre-eclampsia, which is related to poor rest of the pregnant woman and bad quality of the embryo. If strenuous exercise is performed in early pregnancy, such as running, sex, prolonged exertion, or standing, it can lead to brown discharge. If brown discharge occurs in early pregnancy, ultrasound should be done at the first opportunity to find out how the baby is developing in the uterus. If it is determined to be caused by a miscarriage situation, it is important to be hospitalized in a timely manner for fetal preservation treatment in order for the baby to develop better.