During pregnancy, if you occasionally smell paint, it will not have a great impact on the fetus, do not be too nervous, usually should pay attention to regular maternity checks, if you do not find abnormal conditions of the fetus, do not worry too much. But during pregnancy try not to smell paint for a long time, if you smell paint for a long time, it will easily affect the fetus, because paint contains a lot of formaldehyde or benzene chemicals. If in the early stages of pregnancy can easily cause fetal malformations, in the middle and late stages of pregnancy if often smell the smell of paint, it will easily lead to fetal leukemia or slow growth, during this period may also affect the nerves of the fetus, so during pregnancy should try to be in a clean air environment.