Threatened miscarriage mostly occurs during the first three months of pregnancy because, at this time, the embryo's development is still unstable, and its connection to the mother is not secure, making it susceptible to various factors that might lead to a threatened miscarriage. In the first three months, before week 12 of pregnancy, which is considered the early stage, special attention must be given. First and foremost, one should not overexert themselves and must ensure adequate rest and sufficient sleep. Sexual intercourse should be avoided during early pregnancy as well as foods that might stimulate uterine contractions, such as hawthorn and coix seed. Generally, paying attention to nutritional intake and avoiding intense physical activities should largely prevent any major issues.