If you sniff insecticide, if the amount is small and the sniffing time is not long, there is no great effect and there is no need to worry too much. Because pregnant women are special people, so if you smell insecticides, you can do this: if you accidentally smell insecticides, you have to get out of the environment, to the fresh air to go; daily life, do not often go to smell the odor of insecticides; you can take other ways to kill or avoid mosquitoes, such as hanging mosquito nets and so on. There are some harmful ingredients in insecticides, so you should try to avoid smelling insecticides so as not to affect the development of the fetus.