I just got some eggs in the mail. Today is day 2, and there's this one particular egg that looks like the yolk only stays on one side when I candle it. With the other ones, the yolk slowly floats to the top when i turn the egg (which is a good thing) but with this egg, the yolk ALWAYS stays on the the side with the O on it (i mark the X and O to turn them 3 times a day) What does this mean? Is it stuck? Or am I just not seeing it right? I don't want the embryo to die because the yolk is stuck to one side.