If you are pregnant or think you might be pregnant, tell your dentist during your visit.
During the first trimester, it is best to avoid any dental treatment that's not essential. After that point, discuss your anesthesia options with your dentist and your obstetrician or midwife. They can help to decide on the safest choice for you.
Nursing women can receive normal doses of local anesthetics. This does not affect the baby.
If possible, pregnant women should avoid local anesthetics that contain epinephrine. If it accidentally enters a blood vessel, it could reduce the blood supply to the placenta. It also could cause spasms in blood vessels. Spasms could affect the arteries that supply the uterus.