The rubella vaccine must be given before pregnancy because it can prevent rubella virus infection. If you are infected with rubella virus during pregnancy, it is easy to cause miscarriage and fetal malformation. It is better to go to a regular hospital for vaccination, which is safer. After the vaccination, pay attention to rest, strengthen the diet and nutrition, do not eat spicy and stimulating food, three months later, it is recommended to prepare for pregnancy, and it is best to reasonably supplement folic acid during the preparation period. At the same time, it is recommended to eat more fresh vegetables and fruits, exercise properly, and it is better to have regular medical checkups to observe the physical quality. It is better not to use drugs indiscriminately and not to smoke or drink alcohol during the preparation period. In addition, it is better not to have intercourse after early pregnancy and not to contact with things that have radiation to avoid causing fetal malformation, etc. Regular maternity checkups are recommended.