That would definitely mess up the auto-sexing. You might try posting pics on our What Breed or Gender is This? section at https://www.backyardchickens.com/f/15/what-breed-or-gender-is-this and see if our experts there can sex them for you, although I suspect they are too young to be sexed...
If they are true Cream Legbars, the the males will be lighter colored and have a yellow 'spot' on the top of their heads, and the females will have a darker back with darker 'stripes'.
Welcome to BYC. Glad you decided to join our flock. Congratulations on getting your first chickens and a successful hatch. Both events are always so exciting. Raising chickens is a wonderful experience for children. My granddaughter (pictured in my avatar) loves our chickens. Definitely check...