Whether or not the fetus can be preserved by bleeding brown blood at five weeks of pregnancy should be determined according to the amount of bleeding, blood HCG value, progesterone value and other comprehensive judgment to determine whether or not the fetus can be preserved. If the amount of bleeding at five weeks of pregnancy is small, and the HCG value and progesterone value are within the normal range, at this time, you can generally use fertility preservation drugs such as progesterone under the guidance of the doctor, and in general, the fetus can be preserved. If the bleeding at five weeks of pregnancy is very heavy, similar to the amount of menstruation, and there is no doubling of HCG, progesterone values also plummeted, to consider the possibility of inevitable miscarriage. Therefore, whether or not the fetus can be preserved by bleeding brown blood at five weeks of pregnancy should be promptly consulted for a comprehensive judgment, and at the same time, if the pregnant woman develops other symptoms such as abdominal pain, it is recommended to consult a doctor as early as possible.