It completely depends on how dehydrated you are. Back in wilder days, I’ve woken up with ferocious hang overs and drunk tonnes of water first thing in the morning and wouldn’t pee until much later in the day, and that wouldn’t be much. Other times, I can drink a glass or two of water more than usual and feel that I am urinating more than usual. Remember you also loose water by sweating and I don’t mean the real noticeable places, like the pits. Water evaporates off us all the time, even through our mouth as we breathe. It really depends on the rate you are losing water and replacing it. Of course your body has a natural equilibrium it likes to be at and keeping it at equilibrium is always good. :o)