Does Tylenol During Pregnancy Cause Autism? Fact Checking the Trump Administration The Trump Administration has made many comments about autism in 2025. Are pregnant women, especially, putting their unborn babies at risk of developing autism if the mother takes Tylenol during pregnancy? Source: MEGAArticle continues below advertisementDoes Tylenol during pregnancy cause autism? Leucovorin is used for cancer and anemia treatment, per the New York Post, as well as Vitamin B9 deficiency, per the Washington Post.