Ohh! I see now. Thanks for the handy yellow line.
It doesn't look like a hatching crack, just a crack.
The egg will be just fine if the crack hasn't broken the membrane.
I'd continue on schedule, but I might be wrong. Just don't touch anything tonight and see in the morning.
It might be...
If you hear a tapping, then go into lockdown for like a day or two and see what happens.
Generally chicks hatch in the big end. They will peck all the way around the egg in a circle. It can take hours, so be patient.
If the chick was moving around a lot i'd say it's go. That's so awsome!! I...
I've had ducks hatch on day 21 before and also had geese hatch then as well. You should pick up the egg and hold it up to your ear. If the baby is hatching you will hear a faint tapping from inside the egg. If it is silent, then it is not hatching yet and the duck will hatch later.
As for the...