Try to get some pictures of the base of the tail. I believe they can be sexed at that age, but experienced members will need to look at that area of the chameleon.
Carol is 100% right. If you know what you are looking for you can sex most if now all right out of the egg. As for the one above, I believe it is a female. I don't see a straight line at the base of the tail that a male would have.