Cayuga duck egg day 29

[Char5691]

New time hatcher here. Its day 29 the eggs are wobbling and becoming more active and have been for three days, i can hear some chirping but not alot, and i can hear them thumping away. i havent opened the lid since lockdown but now im worried because there isnt any external pips? How long should I wait? Cayuga’s incubation is 28 days and I am using a brinsea polyhatcher with temp and humidty on point.

 

[TexasTurkeyMama]

I never used an artificial incubator, only the feathered kind, but I know that ducklings are tough! It will be OK.