It's easier to tell when they are younger than 5 days the pullets start growing in their wing feathers faster than the cockerel's. you still maybe able to tell look close at the feathers on their wings or post some pics maybe I can help or you'll have to wait for a crow or egg.
EEE. So cute. a crow or an egg. i like that. then you'll know if you've got a boy or a girl. heehee.