If you want to know if you have miscarried, there are several different ways to determine: First, you can judge according to your physical symptoms. If you find vaginal bleeding with a high amount of bleeding, and as the bleeding increases, you will also see white fluffy material, you can infer that there may be a miscarriage. Secondly, if you want to determine whether there is a miscarriage, you can go to the hospital for an ultrasound test, through which you can see whether there is a gestational sac discharged, and if the fetal heart has stopped after the test, it indicates that there is a miscarriage. Thirdly, if the early pregnancy reaction suddenly disappears, there is irregular bleeding or lower abdominal pain, you need to be alert to the problem of miscarriage, it is best to go to the hospital for examination in time.