I don't know. Tomorrow is day 18 and I candled the eggs tonight. I can't see much but there appears to be a dark blob and then a fair amount of "space" at the bottom of the eggs. I can't see movement, but I couldn't with the other chicks. I'm just worried I have a bunch of quitter eggs. I only have one with a noticeable blood ring. No, I didn't take it out. I put the incubator in the most constant temperature place and it has been at 100F constantly. Humidity is around 50% and I'm bumping it up for the last days. Should I be worried? I haven't heard a peep from them either.