Not enough water?

I’m 5 weeks and 5 days pregnant, For the past 3 years I have drank nothing but water, so soda, liquor, juice, ect. Only water. And I have always drank around 8-10 cups a day before I got pregnant, now that I’m pregnant I drink between 12-14 cups. Before I got pregnant my pee was always clear and only sometimes and very rarely was it a lite yellow color. Now that Im pregnant my pee is yellow, I drink a lot of water so why is my pee yellow? Recently I also started drinking a can or two of ginger ale to help with my nausea but that’s in addition to the 12-14 cups of water. I weigh 130 and my height is 5 feet 6 inches so I’m not overweight and I know I’m drinking more then enough. Any other ladies experience this? No I’m not taking any prenatals yet.