This document discusses oral health during pregnancy. It recommends that pregnant women see the dentist anytime, but especially during the second trimester or first half of the third trimester if procedures requiring anesthesia, medication, or extensive time in the chair are needed. Common oral issues during pregnancy include gingivitis causing red, swollen, tender gums that bleed easily, and enamel erosion from frequent vomiting. Proper oral hygiene including brushing, flossing, and rinses can reduce bacteria and prevent issues.