Water taste really bad

Hi mommies ! I am having an issue with regular tap water. I can taste its metal contents more so. Even before pregnant, I can say difference to brand waters & can say which household tap water feels heavyweight to swallow #weird. But now I can taste so much of its metal. Idk what I am tasting. The closest I can describe is metal. Any suggestions ? It's getting bad. it's gross to drink. But I am forcing myself to drink. I can feel my dehydration a lot. I also wouldn't want to add sugar to my water coz I am afraid of diabetic. Wuld love to hear in frm you ladies :)