If you have brown blood streaks in early pregnancy, it is possible that a spontaneous abortion has occurred, and you need to go to the hospital to have an ultrasound to check it out. In the early stage of pregnancy, if the ultrasound has been determined to be intrauterine pregnancy, and there is a flow of brown blood streaks and fresh blood, it is necessary to consider whether spontaneous abortion has occurred. If you do ultrasound in the uterine cavity still see the gestational sac, a small amount of bleeding occurs, indicating that the occurrence of preeclampsia miscarriage. If it is a pre-eclampsia, only the signs of miscarriage have appeared, and the miscarriage has not really occurred, then you can use medicines to keep the fetus, such as insufficient corpus luteum function, you can inject progesterone injection. If the amount of bleeding is about the same as the amount of menstruation, ultrasound examination of the pregnancy sac has reached the cervical opening, then this situation belongs to the inevitable miscarriage, there is no need for birth control, and you need to clear the uterus in time for treatment.