If you are pregnant but have brownish discharge, consider preeclampsia, ectopic pregnancy, vaginitis and so on. 1. Pre-eclampsia: If the embryo has some chromosomal aspects, or due to the mother, father and other factors, resulting in poor quality embryos, easy to pre-eclampsia, pre-eclampsia will have a small amount of vaginal bleeding, due to the small amount of bleeding, manifested as brown discharge, usually accompanied by paroxysmal abdominal pain. 2. Ectopic pregnancy: Ectopic pregnancy is the development of a fertilized egg in a part of the body cavity outside the uterus, the more common is tubal pregnancy, due to the location of the fertilized egg is abnormal, can cause tubal rupture and other conditions, bleeding, usually also have abdominal pain symptoms. 3. Vaginitis: the hormone level in the body of women after pregnancy will change, it is easy to appear in the vagina flora imbalance, vaginal inflammation, vaginal inflammation is more serious, it will lead to congestion and edema, there will also be some brown secretions, usually accompanied by an increase in secretions as well as the symptoms of itching. If you are pregnant but have brown discharge, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.