Chlorpyrifos should not be used by pregnant women. Chlorpyrifos belongs to a kind of pesticide, which has certain toxicity, if pregnant women are exposed to chlorpyrifos, it will easily affect the growth and development of the fetus, and it may also cause certain harm to their own health, so chlorpyrifos can’t be used by pregnant women. During pregnancy, you should avoid contact with toxic and harmful substances, so as not to adversely affect the fetus, you should eat more high-protein lean meat, milk or fish, shrimp, eggs and other foods, but also eat more vegetables and fruits to replenish a variety of vitamins, balanced nutrition is conducive to the development of the fetus, but also to do a regular pregnancy test. It is recommended that pregnant women do not use chlorpyrifos to avoid some adverse effects, if inadvertently exposed to abnormalities, we must seek medical attention in a timely manner.