I candled my BBS Orp eggs that are on day 15. They all looked good and were all moving around. One of them, however, looks like it was so much smaller. If I hadn't seen it move, I would have thrown it out thinking that it stopped developing about a week ago. All of the eggs went in on the same day. Is this within the limits of normal? What are the odds that this one will die before hatching? Or, would it just hatch a few days later? I've never had one so much smaller but still alive.