Fantastic! You've created something very original here, and it's simply spell-binding (if you don't mind the cliche). I love how you have Harry so helpless, and yet he just deals with it and goes on with life.
Snape - how he starts out so acid, and yet, I think he warms up as he sees just how serious Harry is about his situation and doing what's right. I love the interactions with Ron and Hermione, and I can still picture the curse inside Harry's mind.
Poor Harry, and poor Ron for having to see what actually affected him.
Yeah, Harry ought to have apologized sooner, but he's a guy. What can we say. And a pregnant guy, at that!
Fantastic job! You've created a new world with this one. :D