Insecticides may have certain effects on pregnant women. As the chemical composition of insecticides is complex and contains a variety of harmful substances, if you are in an environment with insecticides for a long period of time, it may have a great impact on pregnant women, and can enter the bloodstream through the respiratory tract of pregnant women, which can easily affect the growth and development of the fetus, so the use of insecticides is not recommended during pregnancy. If an indoor space sprayed with insecticide, be sure to ventilate this gas before entering. If there are mosquitoes in the room, you can use mosquito nets and curtains to avoid the use of insecticides. Meanwhile, during pregnancy, you should pay attention to dietary diversity and nutrition, and take regular pregnancy tests to observe the development of the fetus. It is recommended to stay away from insecticidal environments as much as possible during pregnancy and to keep the room ventilated. If you feel unwell during pregnancy, it is recommended that you go to the hospital in time.