Hi and welcome to BYC - great that you have joined us. I'm no expert, but thats a lot of comb for a girl at that age. For advice from the experts, I'd suggest posting on the gender thread - https://www.backyardchickens.com/f/15/what-breed-or-gender-is-this - they'll sort you out.
Greetings and . Happy you joined us. I'm the world's worst when it comes to deciding rooster or hen so I will leave it to the experts. Good luck and enjoy BYC.