Looks to me like it could be a female as its growing upwards, general calyx behaviour.
However yes it's early so just keep an eye on it, it will either grow white hairs out of it or develop balls.
Just wanted to give some props on the close up and far away pics so often it's hard to help out when you don't know what your looking at. A buddy of mine used to sex early by covering a branch or two for 12/12 white still in veg and he had pretty good results. Just 2cents *Cheers*