Cracked Egg! Help!!

[0iseau]

I was checking my duck’s eggs as I do every night - candling them to see the growth. I picked one up and my thumb put a hole into it! I know I didn’t grab it hard so I think the eggshell was weak there or already a bit cracked.
The embryo is still alive and moving. Saran wrapped the egg and attempted to give it back but she immediately rejected. Have it sitting wrapped in a heating pad while the incubator warms up.

What should I do? I’m not 100% sure when she started incubating. The chicks are small but seem mostly there
Here’s a video I took of said egg https://imgur.com/a/iA4yz4N

The crack is about the size of my thumb, more of a hole than a crack. I don’t think it broke the membrane of the egg.

 

[Lemon-Drop]

A picture would be helpful (I can't see the video)
What day is it on?
I would try putting wax over the crack if possible. Just melt and pour a little over.

 

[0iseau]

A picture would be helpful (I can't see the video)
What day is it on?
I would try putting wax over the crack if possible. Just melt and pour a little over.

I will see if we have any wax. We’re a fairly candle free household due to other pets.
Not sure what day it’s on because I was an idiot and forgot to write down when she started sitting.
It’s the depressed area Picture