Lubricants usually do not affect pregnancy, but in order to achieve the purpose of eugenics in the preparation of pregnancy is best not to use. Lubricants can play a role in lubrication during sex, for vaginal dryness is more suitable for women, lubricants are mainly composed of water and some oil or glycerin, etc., will not have any effect on the body, will not be harmful, and will not affect the conception. Therefore, lubricants will not affect the pregnancy, but the composition of the lubricant also has a certain chemical composition, so there is a better way to achieve the purpose of eugenics, it is best not to use in the preparation for pregnancy. If you must use it, you should also buy it in regular pharmacies or hospitals. Women should pay attention to good habits during the preparation for pregnancy, and take folic acid tablets three months before the preparation for pregnancy.