Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. The drug is not recommended for use during pregnancy, as it may cause harm to the fetus [2]. The medication is classified as a Pregnancy Category X drug, which means that it is contraindicated for use during pregnancy, and its risks outweigh the potential benefits [3].

According to the National Health Service (NHS), women who are pregnant or planning to become pregnant should not take Lipitor [2]. The medication may cause birth defects or harm the developing fetus, particularly during the first trimester [2]. The NHS advises women who are taking Lipitor and become pregnant to stop taking the medication and consult their doctor immediately [2].

The American Pregnancy Association also advises against the use of Lipitor during pregnancy [3]. The organization notes that the medication may cause harm to the fetus, particularly in the first trimester when the baby's organs are developing [3]. The association advises women who are taking Lipitor and become pregnant to stop taking the medication and consult their doctor immediately [3].

In conclusion, Lipitor is not safe to use during pregnancy. The medication may cause harm to the developing fetus and is classified as a Pregnancy Category X drug. Women who are pregnant or planning to become pregnant should not take Lipitor and should consult their doctor immediately if they are taking the medication and become pregnant [2][3].

Sources:
[2] https://www.nhs.uk/medicines/atorvastatin/pregnancy-breastfeeding-and-fertility-while-taking-atorvastatin/
[3] https://americanpregnancy.org/healthy-pregnancy/medication/atorvastatin-during-pregnancy/