I know this isn't going to be the best advice ever given, but try not to freak out about it. Only with time can something like this become definite. It may be that you are gay, it may be that you aren't.
It took me to fall for three females before I was definite in my sexuality. Just be patient Jess.
(I shall add more later, but i am late to meet my gf as it is! lol