I'm 20 weeks and I no longer feel the pressure where the baby was, has he moved up?

I used to feel pressure like on my bladder or somewhere down low but I woke up this morning and I don't feel the pressure. My stomach feels flabby when I lay down and rock hard when I stand up. I haven't felt movement or kicks yet so I'm not sure if I'm just over re-acting. I do feel the occasional flutter but it still seems weird. This is my second child.