Nesting?

I think that I have begun to nest, and I have started to clean and get rooms ready for the baby, but I've begun to wonder about 'nesting'. There are many times when the urge to clean comes when I find myself sitting on the floor because I just can't squat or bend over like normal. Then I stay there longer than usual because the thought of getting up seems too tiring. Then, of course, the actual process of getting myself up is somewhat amusing. And during all this, I have time to see places in my house that I don't normally see, or, apparently, clean. So my question is this, is it truly nesting or just seeing dirty places that don't normally get seen?