Eggs in Incubator

I have lots of eggs right now (in the incubator - lol) doing a test on my new incubator and on day 10 did away with 16 eggs out of 48 and only one was a mistake (my husband called me a chick killer just now), of course it was one of the wellies. The others all look like they are developing and any that were iffy I just left in. I figure that isn't too bad considering the time of the year. I checked all the eggs and none of the other 15 had any sign of developing, so I figure they were infertile (I am blaming it on the time of year). Looking forward to the hatch.