(HELP!) Day 30 with my duck egg and still no internal pipping

[Edeguz]

I started incubating this duck egg on may 19th and it still hasn’t hatched. I’ve been incubating it with my homemade incubator. So I know the temperature has been fluctuating between around 93-100 degrees. I checked on the duck egg recently and I can still see it moving but I can’t see any internal pipping. At this point I don’t know if the egg will hatch or not.

 

[AgnesGray]

What type of duck? I've heard of 28-day duck eggs going 33 days. If it's still moving I always leave them in.

 

[Edeguz]

I’m not an expert but I’m pretty sure it was a mallard. I have a picture of the parents that abandoned the egg too

 

[DuckyDonna]

ah, so you really don't know what day you are on right? I would put it back in the incubator and let it be. Keep checking on it. I think going by the size of that air cell that I'd raise the humidity to about 70% because it looks like it's close to being ready to me. What do you think @Isaac 0 ?