There is no scientific data on how long it takes from preterm labor to labor and there is no exact time. If a pregnant woman has only false contractions or irregular lower abdominal pain, it may take a few days to a week before labor begins. When a pregnant woman experiences erythema, which is the discharge of a small amount of bloody vaginal discharge accompanied by mucus plug, it may be a reliable sign that labor is about to begin, and most pregnant women may initiate labor within 24-48 hours after erythema. After a pregnant woman experiences preterm labor, she should bring her own and her newborn’s belongings and be promptly admitted to the hospital for observation. It is usually necessary to be admitted to the hospital for labor, and during the hospital stay, try to rest in bed, avoid strenuous exercise, and supplement nutrients. However, do not eat too much greasy and hard food to avoid indigestion. Pregnant women need to adjust psychologically and be ready to enter the delivery stage.