OK am i bi??

I know this is a lot like all the other pertanyaan but i just wanna know. all my life i have always thought that i need to be straight and not gay. but lately ever since ive started listening to katy perry's i kissed a girl and joined this club...i've been feeling not normal. I mean, don't get me wrong, guys are hot and all, but i've just been thinking about what it would be like to be bi. and i've been having these sexual attractions to girls and stuff:/ i will settle for both guys and girls but right now im guys more... am i just exploring my feelings atau am i bi??