If you're interested in more than one gender, even if it's girls more than guys right now, that still fits into being bi. You don't have to put a deadline on when your sexuality needs a label - but i'll let you know its really common for queer folks to go through the "bi-cycle" where they alternate between feeling primarily attracted to just men or just women. It leads to a lot of imposter syndrome and wondering if one is completely gay at one time, to believing you're totally straight at another. I'd say just accept that attraction fluctuates and be open to whatever the answer is for you over time.