Please forgive if this is asked often, I couldn't find a thread that covered it. I have 4 eggs that internally pipped yesterday and the first external pips in three of those today. My remaining 6 have not pipped at all. Two I think may be malpositioned as the body is not against the air cell. But as far as the others, is it normal for them to be lagging days behind the others? I have a DIY incubator, forced air, good steady temps and humidity. Also, I am assuming to cater to the pipped ones on upping the humidity, is this correct? Thanks all!