If you are pregnant and bleeding a little bit, it may be caused by implantation bleeding, or it may be caused by abnormal pregnancy or gynecological diseases. 1. Bleeding from implantation: When the fertilized egg is implanted in the early stages of pregnancy, the endometrium is stimulated to rupture, and a small amount of vaginal bleeding may occur, while the test paper test is positive, the amount of bleeding is generally small, and disappears in 2-3 days, so it can be observed for the time being. 2. Abnormal pregnancy: test paper to detect pregnancy after a little blood may also be a pre-eclampsia or ectopic pregnancy caused by abdominal pain and lumbago discomfort, can be combined with blood HCG, progesterone, ultrasound to confirm the diagnosis. 3. Gynecological diseases: Bleeding after pregnancy test may be caused by cervicitis, cervical polyps or cervical cancer and other diseases that cause irregular bleeding symptoms, usually with increased secretions, odor and other symptoms, need to be combined with gynecological examination to confirm the diagnosis and treatment. Therefore, if you are pregnant and bleeding a little bit on the test paper, it is recommended that you go to the hospital in time to have a checkup, clarify the cause of the disease and follow the doctor’s instructions to deal with the treatment.