eggs havnt pipped yet starting to get worried

[alwayslovely14]

Im hatching duck eggs for the first time and it day 27. The eggs havnt moved yet and they havnt pipped either when i candled them the last time they looked fine. Is something wrong?

 

[yinepu]

Im hatching duck eggs for the first time and it day 27. The eggs havnt moved yet and they havnt pipped either when i candled them the last time they looked fine. Is something wrong?

We need more info..

what kind of ducks?
What has your temperature been during incubation?

When you candled them were the air cells on track for waterfowl eggs? (the line by the number is where the bottom of the air cell should be on that day of incubation)

Did you leave all vents on the incubator open during incubation and hatch? If not they should be.. closing up the vents raises the chance that the ducklings will die from carbon dioxide poisoning