It is best to wait 3 months after taking a chest X-ray before you can get pregnant, because chest X-ray has a certain radiation effect that can affect the quality of the eggs, and it takes about 3 months for an egg to develop from the beginning to its final maturity. Chest X-ray is an X-ray, which is a kind of radiation exposure, but the dose of X-ray examination for taking chest X-ray medical is very small and will not affect human health. Studies have shown that it is only when the applied dose of 1 chest X-ray is 100 times or more that the embryo may be affected. Therefore, one chest X-ray is not used as a basis for the diagnosis of termination of pregnancy, but nowadays, eugenics is promoted and it is recommended to prepare for pregnancy 3 months after the X-ray to avoid the quality of eggs being affected. Theoretically, a single chest X-ray has no significant effect on pregnancy, and the pregnancy should not be terminated because of a chest X-ray.