Six weeks pregnant belly button pain with a small amount of bleeding may be due to preeclampsia, inevitable abortion, ectopic pregnancy and other reasons. 1. Pre-eclampsia: patients often have little bleeding, often dark red or bloody leukorrhea, no discharge of pregnancy, followed by pain in the navel or lower back pain, which may improve after rest or supplemental progesterone. 2. Inevitable abortion: on the basis of preeclampsia, the patient’s bleeding increases and the pain in the navel intensifies, at this time, it is difficult to carry out the pregnancy, and abortion is inevitable. 3. Ectopic pregnancy: the patient’s bleeding is not much, usually not more than the amount of menstruation, color dark red or dark brown, navel pain is not very obvious, but there are repeated irregular vaginal bleeding, the need for timely medical attention, otherwise life-threatening. If the patient has six weeks pregnant belly button pain, there is a small amount of bleeding, after sufficient rest the symptoms can not be improved, but continue to worsen, it is recommended to seek timely medical attention, under the guidance of the doctor, improve the relevant examination, symptomatic treatment.