Insecticide spraying in early pregnancy may have certain effects. The ingredients of insecticides are very complex and contain a large number of harmful substances; early pregnancy is also a sensitive period for the embryo, so if insecticides are sprayed in the early stages of pregnancy, there may be some effects on the fetus. If an indoor space is sprayed with insecticides, it must be ventilated for a period of time before advising pregnant women to enter. It is best to advise against the use of insecticides and to have mosquito nets and curtains indoors as protection. If you have already entered a space filled with insecticides, it is recommended to ventilate the space in time, and after that, you need to do regular maternity checkups to see if it is affecting the fetus. It is recommended to stay as far away as possible from insecticide-filled environments during pregnancy and to keep the room ventilated. If you feel unwell during pregnancy, it is recommended that you seek medical attention.