Eating leftovers and vomiting in mid-pregnancy may be caused by gastrointestinal irritation. If there are no other abnormal symptoms, focus on observation and rest more. If the body has other abnormal symptoms, then you should immediately seek medical attention. 1. No other abnormal symptoms: Eating leftovers in mid-pregnancy causes vomiting, probably because the leftovers are spoiled and harbor bacteria, which cause irritation to the gastrointestinal tract and cause vomiting. If there are no other uncomfortable symptoms, observation is the main focus, more rest, eat a light and easy-to-digest diet to help the intestinal tract to recover. 2. Other abnormal symptoms: after eating leftovers in mid-pregnancy caused vomiting, if accompanied by other abnormalities, such as: frequent fetal movement or vaginal bleeding and other symptoms, then the situation is more serious, should immediately seek medical attention. Pregnancy is a special time, and you should pay special attention to your diet during pregnancy. If vomiting from leftovers in mid-pregnancy triggers other symptoms, you should go to the Obstetrics and Gynecology Department of the hospital at the first time to do clinical ultrasound and other systematic examinations to confirm whether the fetus is normal or not, and follow the doctor’s instructions to receive subsequent fertility preservation treatments.