Well, after examining the eggshell a little more, I noticed on the underside of the shell a few slits were made. I came to the conclusion that the egg sitting underneath THIS egg pipped through the bottom and may have cut into the yoke a little. It makes since because the pastels head seems a little premature. Luckily it pipped and didn't drown but I'm really stressing over the health of this hatchling. Fingers crossed.