Toothaches could mean different things and signify various dental issues. Due to a change of hormones during pregnancy, a person is more prone to getting dental problems. Since this time is sensitive enough, you can eliminate foods and beverages that cause sensitivity or pain in your gums or teeth. To relieve pain and inflammation, you can take warm water, mix half a teaspoon of salt, and try to gargle with this water. Combined, warm water and salt help reduce pain and inflammation and heal your mouth. You can try put relieve pain by applying a cold compress to your jaw. Tylenol is a recommended medicine for pregnancy as an over-the-counter medicine.