Brahma Light

hey, do you breed light brahma's? if so could you inbox me ? thanks

My light brahma is now 10weeks old and part of the first batch of chickens I've ever raised. The description says you should start seeing indications of sex at about 7 weeks and definitively at 12 weeks. Right now the comb is pretty light and small-- would it already be getting red if it were a roo? What else should I be looking for? Feel like I should know this but I don't...