Going through the water

Boy, do we go through the water in a week. We usually go through more than 48 bottles of water in less than two weeks. I think part of it is me being pregnant and making sure that I'm constantly drinking water throughout the day...but I still can't believe how much water we go through!! I've never really sat down and figured it out...but I have a feeling that buying all of that bottled water sure adds up. I don't think i want to know how much we spend on it each month..haha.:)