Six months after the C14 breath test can not get pregnant is mainly related to the C14 breath test there is a certain degree of radioactivity, may affect the health of the fetus. The C14 breath test is a commonly used clinical test for detecting Helicobacter pylori, in which the patient consumes a drug labeled with C14, which is broken down by Helicobacter pylori, and the concentration of the labeled carbon element in the exhaled gas increases. the C14 breath test is slightly radioactive, and out of concern for the protection of the pregnant woman and the fetus, the patient is advised not to get pregnant within six months. After the C14 breath test, patients can drink more water and exercise more to enhance the body’s metabolism and promote the discharge of radioactive substances from the body. After the C14 breath test, it is best for women to use contraception for half a year and prepare for pregnancy after adjusting their body.