Why Does My Mouth Taste Bitter?

Pregnancy

A bitter or metallic taste in the mouth is a common complaint during the first trimester of pregnancy.The hormones in the body fluctuate during pregnancy. This variation can affect the senses, which can cause specific cravings and make some foods or smells seem disgusting.Many people who are pregnant also notice a metallic, bitter, or tinny taste in their mouths. This can be annoying, but it usually goes away later in the pregnancy or after giving birth.