Hard stomach in the morning ?

Hey ladies so this has been going on for a while. When I wake up in the morning I have to pee really bad and my lower stomach area is really hard and pops out a little more it actually looks like I got a belly. But then when I go pee which usually is the longest pee iv ever taken lol it goes down to just flab. Lol is this normal? What is it? I'm 16 weeks 5 days prego. Weird question I jnow