Pain with a pulling sensation in the right side of the lower abdomen in the fourth month of pregnancy is mostly a normal phenomenon in the course of pregnancy and there is no need to worry too much. In a few cases, it may be caused by certain diseases, which can be promptly examined by a doctor and treated according to the cause. During pregnancy, the fetus grows and the uterus enlarges, pulling on the abdominal muscles and ligaments and causing abdominal pain, which may be unilateral on the right or left side, or may be felt throughout the lower part of the abdominal wall. This pain is usually not particularly intense and does not have a negative impact. Pregnant women can relieve the pain through adequate rest and local heat compresses, and no special treatment is needed. As the fetus develops and the gestational age increases, this pulling pain will gradually decrease. In a few cases, if you are suffering from appendicitis, right fallopian tube infection, right ovarian cyst and other diseases in the fourth month of pregnancy, you may also experience painful pulling pain in the right side of the abdomen, accompanied by fever, pallor, dizziness and weakness, etc. You need to seek medical examination in time, and according to the examination results, the doctor will choose medication or surgery.