The left side of the stomach in early pregnancy is associated with intestinal cramps if it is located upwards, or adnexitis if it is located downwards near the adnexal area, or pain caused by the enlarged uterus pulling on the muscles and ligaments of the adnexal area after pregnancy. The pain caused by gastrointestinal cramps lasts for a short period of time and may be related to improper diet and may be accompanied by diarrhea and other symptoms, it is advisable to go to the internal medicine department of the hospital. The fact that the uterus is growing after pregnancy tends to strain the muscles and ligaments of the pelvis, leading to straining pain.