I'm not quite sure. You can tell by seeing if the neck or sadle feathers are long and pointedish (rooster) or regular short and rounded (hen). In the picture they kind of look pointed but I can't quite see.
Thanks I'll go look to see if they are pointy. I really want this one to be hen so with that said I probably have a rooster. This one was a cracked egg that I duct taped during incubation.