Is it normal to have brown secretions at 7 weeks of pregnancy

7 weeks pregnant brown secretion is abnormal, is an abnormal phenomenon. There are two common reasons, the first is the lack of progesterone in the body, leading to threatened abortion. The second is fertilized eggs in the uterine implantation, caused by ectopic pregnancy. Pregnant women are recommended to go to the hospital obstetrics and gynecology in time for treatment.