Is it a sign of pregnancy when your mouth taste like a penny and you feel like you are going to be sick

Is it a sign of pregnancy when your mouth taste like a penny and …?

http://www.chacha.com/question/is-it-a-sign-of-pregnancy-when-your-mouth-taste-like-a-penny-and-you-feel-like-you-are-going-to-be-sick

Some pregnant women say that they have experienced the taste of metal in their mouth as a sign of pregnancy.