So I have 6 duck eggs in my Incubator and it's day 29 I think... I read that you shouldn't count the set date as day 1 so if that's correct then it's day 28. The temp reads at 98.9-99.1 degrees and 55% humidity, but I still don't see any movement or pipping. Should I try candling them quickly to see if they are even alive? Or just let them sit for another day? I've never done this so I'm very nervous.