Stay well hydrated and cool source Water is specifically important during the last trimester American Pregnancy Association. 8 to 12 glasses American Pregnancy Association. important role in developing your baby staying away from caffeine Dehydration During Pregnancy: Signs, Symptoms and Prevention take a look at the color of your urine source 8 to 12 glasses source birth defects, the effects of not drinking enough water while pregnant Water is specifically important during the last trimester