If there is light blood flow in the early stage of pregnancy, you need to pay attention to see if there is any stomach pain. If there is stomach pain and blood flow, you should have an ultrasound promptly to rule out ectopic pregnancy first. If there is ectopic pregnancy, this phenomenon will occur and should be treated promptly and symptomatically. Early ectopic pregnancy can be treated conservatively, and if it is serious, it can be treated surgically to avoid serious development of the disease. In case of an intrauterine pregnancy with bleeding, the progesterone value also needs to be checked. If the progesterone value is low, an aura of miscarriage is considered and progesterone should be supplemented in time to play a role in preserving the pregnancy. If the pregnancy is intrauterine and the progesterone level is not low, and there is bleeding during this period, it is considered to be physiological. Some pregnant women may have a small amount of blood when they are due to have their period, although they are already pregnant, this is a normal manifestation and does not require special treatment, try to rest and not to exercise too much during this period.