Women can get pregnant the same month or the next month after taking a DR chest X-ray. DR chest X-ray is a kind of X-ray examination, which is radioactive, but whether it causes radiation damage or not is related to the radiation dose. The threshold of teratogenic dose is 50-100 mSV for 0-2 weeks of pregnancy, which mainly causes fetal death; the threshold of teratogenic dose is 200 mSV for 2-8 weeks of pregnancy, and the main effect is congenital malformation. In general, the radiation dose of a DR chest X-ray is 0.02 mSV, which is much smaller compared to 50 mSV and will not cause radiation damage to the human body. In addition, the examination will be done with corresponding protective measures, using lead caps, lead collars, lead aprons, etc. to protect the head, thyroid, genitals and other organs. Therefore, women do not need to be nervous after the DR chest X-ray, they can prepare for pregnancy in the month when they are not ovulating, and they can have children in the next month after ovulation. In short, even if you have a DR chest X-ray without knowing the pregnancy, you do not have to give up the pregnancy because of it.