I am new. I asked this question somewhere else yesterday, but I can't find it now. When the eggs are 12 days, will the dark part inside roll when you turn the egg or will it remail stationary? I have some of each. Yesterday was the first time I read about exploding eggs, so I would like to get bad ones out if possible! My eggs are brown and I think I saw the veins...or was I imagining things? I definitely see the dark spot. and the air spot. and no cracks. and only one blood circle. But what about this rolling or not rolling? Or was the little thing moving on its own? I'd go check again, but then I read on here that you'd better stop touching them. Oh this learning curve is frustrating.