I know this is probably a stupid question, but I shall ask it anyway. So, I have 46 eggs in the incubator and a few (didn't count but luckily I don't think too many) look like they have blood rings. There is a thick-ish (a little thicker than the spider-web veins) red line around the egg. Not like a circle but actually around the circumference of the egg, a lot like this. I really don't want exploding eggs because I have expensive BBS Ameraucana eggs in there and from what I've read, when one explodes you have to throw out all of the eggs that get exploded on, but I also don't want to be wrong and accidentally throw out a developing chick. Would it be "safe" to leave the eggs in the incubator, or will they explode without warning? I would notice a smell or "weeping" because I turn the eggs by hand and when I candle them I leave them in place and put the flashlight and pretty much my whole head in the incubator I strongly dislike the idea of exploding eggs, if you haven't guessed.