If your period is delayed for 6 days after taking the New Coronavirus vaccine, you can first observe the situation, or go to the hospital for ultrasound and blood HCG test or hormone 6 test, and then decide the next treatment plan based on the test results. New Coronary Vaccine can prevent the new coronary virus infection, and it does not contain hormones, and generally will not affect the endocrine function resulting in delayed menstruation. 1. Observation: Menstruation delayed for 7 days or less is considered a normal menstrual cycle. If menstruation is delayed for 6 days after vaccination with the new coronavirus vaccine, you can wait for observation and do not need to deal with it for the time being; if menstruation has not been delayed for a long time, you can go to the hospital for consultation. 2. Ultrasound and blood HCG examination: If you have sex and have regular menstruation, and your menstruation is delayed for 6 days after receiving the New Crown Vaccine, first of all, you should consider whether you are pregnant or not, and we suggest that you undergo a blood HCG and ultrasound examination, and if you are sure that you are pregnant, then you can decide whether to continue the pregnancy or terminate it according to the requirement of childbearing and the time of the injection of the New Crown Vaccine. 3. Hormone 6 test: delayed menstruation for 6 days may also be related to endocrine disorders, it is recommended to go to the hospital in the morning on an empty stomach to take a blood test for hormone 6, according to the results of the test for further treatment. If your period is delayed for 6 days after taking the new vaccine, you can first observe the situation, or go to the hospital for relevant examinations to clarify the cause.