I was 9 years old when I read Prisoner of Azkaban. And I wasn't that dirty minded at the time, so I hadn't really guessed any of the couples. xD
But, subconsciously, I guess I always thought Harry would end up with Hermione. xDD

That came completely out of left field.

I was really shocked. I don't even like Ginny that much. Well movie Ginny at least. Book Ginny was ok I guess....

it was clear

Book 2 made me consider her as a love interest, but I wasn't sure cause I always thought Hermione was one too...I was young.

Yes, that was in the air... I just hoped it'd turn out otherwise.

Same as ORi_4EvEr_Y0ung, except the part with 9 years old. xD

i knew from the first time ginny found out who he was .

when she said "good luck" to Harry...i knew.

Nope... Personally, I think that Harry/Ginny was very far fetched during the first few books. Harry should have ended up with Hermione or Luna or anybody other than Ginny!