Candling eggs

It is day 10 for the eggs in the incubator. On candling them out of the 28 set 5 are clear - 3 Ixworth or Australorp X Indian Game and 2 Welsummer ( both from the same hen). There are 2 suspect eggs which I think may have died very early on, but as I'm not 100% sure I have put them back for now. I probably won't candle again until day 18 when I stop turning the eggs, ready for hatching around day 21 - hopefully !!