Contraception is generally recommended after receiving the bivalent vaccine. However, if pregnancy is detected, the pregnancy can continue if there is no abnormality in the labor and delivery test; if abnormalities are detected in the labor and delivery test, it is necessary to consult a medical professional to decide the next step of treatment. The bivalent vaccine is currently administered in 3 doses, i.e. in the 0th, 1st and 6th month. As the vaccine has a certain degree of toxicity, vaccination during pregnancy may cause adverse effects on the fetus, so it is generally recommended that women start preparing for pregnancy 6 months after vaccination. However, if you find yourself unexpectedly pregnant during or after vaccination, you generally do not need to worry too much, and you need to undergo regular obstetric checkups, and if the fetus develops normally, the pregnancy can usually continue. However, it should be noted that if the fetus is found to be underdeveloped or with developmental abnormalities, it is recommended to consult a medical professional to decide on the next step of treatment.