Pregnancy three months after miscarriage, if it is a small month miscarriage, especially if it is within 49 days, a three month pregnancy is still possible. This is because small month miscarriages are usually contraceptive for one month and then you can plan another pregnancy in the second month. In case of a large month miscarriage, such as four, five or six months, the uterus and cervix need 6-8 weeks to return to their normal state and a three-month pregnancy is possible. But it depends on the condition of the mother, that is, the mother’s health. The mother is usually in poor health, has chronic hypertension, chronic diabetes, and some combination of chronic systemic lupus erythematosus and sclerosis. If these diseases are not controlled in a stable state and she gets pregnant at this time, the risk of pregnancy may be higher. If the blood pressure is already high, the pregnancy is often combined with pre-eclampsia, generalized edema, urine protein, pleural fluid, ascites, intrauterine distress, fetal growth restriction, and a series of such risks after 20 weeks. If a mother with high blood glucose does not control her blood glucose at a stable state and becomes pregnant again, she may have a higher chance of fetal malformation, neural tube abnormality and stillbirth, and the risk is higher during the whole pregnancy.