It keeps getting hotter and hotter outside, which makes drinking water that much more important. And with your little one on the way, assuring you get enough water is crucial. When you are pregnant, your recommended daily intake is higher. While how much water you will need varies by body type and how active you are, The Institute of Medicine recommends that pregnant women drink about 10 eight-ounce cups of water. But how can you tell if you are getting enough? Frequent trips to the bathroom and pale or colorless urine are both good indicators that you are drinking the right amount.