Pregnant, brown blood all the time. What's going on?

Pregnancy has been bleeding brown because there are some precursor to abortion caused, such as luteal insufficiency, or because of intense activity and fatigue caused by bleeding. First should go to the hospital to do a progesterone test, followed by the need for bed rest, to prevent fatigue and sexual life. If the progesterone is too low, it needs to be supplemented by oral or intramuscular progesterone injection in time. Tired needs absolute bed rest to prevent the precursor of abortion caused by fatigue again. At the same time, it is also necessary to find out whether there are other factors, such as infection, or bleeding caused by symptoms such as ectopic pregnancy. It should be checked by color Doppler ultrasound to ensure that it is intrauterine pregnancy, and then carry out fetal protection treatment.