The left side of the small abdomen vague pain symptoms in early pregnancy, there are several possibilities. 1, may be due to pregnancy, due to the gradual growth of the fetus, causing the uterus to increase, pulling the pelvic muscles and ligaments appear pain symptoms, belong to the normal physiological phenomenon. It is recommended to consult a gynecologist, cooperate with the doctor to do an ultrasound examination, after the diagnosis under the guidance of the doctor symptomatic drug treatment. 3, if the pregnant woman in early pregnancy, the left side of the small abdomen vague pain, and accompanied by vaginal bleeding symptoms, there may be a pre-miscarriage, need to timely bed rest, and sent by family members to the hospital obstetrics and gynecology consultation treatment.