It is recommended that women should try not to do manicure when they are preparing for pregnancy. When doing a manicure, you need to apply nail polish and nail varnish to your nails, and these nail art items contain more chemicals that are harmful to the body. For example, phthalates in nail polish are extremely detrimental to reproductive health, and chemicals such as benzene and formaldehyde in them are also carcinogenic. If the harmful substances in nail polish are absorbed by the body when a woman is preparing for pregnancy, it will easily have an adverse effect on the embryo after pregnancy, resulting in malformations in the embryo’s development, or even serious consequences such as embryonic sterilizations or miscarriages. Therefore, for the sake of the health of pregnant women and the fetus, it is not recommended to do nail art when preparing for pregnancy.