Do I have to drink more water now that I am pregnant?

No. Too much water will bloat you. Just drink enough to keep from being thirsty.
No. While pregnant, it is important to stay hydrated, but it is not crucial to drink buckets of water. Drink enough water so that your urine appears to be a clear pale yellow. Depending on heat and humidity on a given day and your activity level, the amount of fluids to drink can vary quite a bit.