OK, I AM NOT hatching/incubating eggs... BUT we are having questions from neighbors...so I better ask.. We have hens that lay fertile eggs; obviously I dont know which ones are fertile, which arent.. so we just err on the side of caution they all are. NOW...how fast to chicks develop if I miss an egg and its being sat on for a day? with a 19-21 day incubation period; its gotta be kinda fast right? The temps have been way over 80 for weeks now...so add that in on I have two broodies.. what are the chances of finding an egg with development in it..?? If I miss it for one day? two days? if I get them ALl each day and they sit on my counter we're good right?