Update, the little guy is doing better, he's still weak and won't eat but he can move around and chirp. Thank you so much everybody! I'll post a picture later :)
We checked them all, only 1 more is alive, we helped him open up his hole a bit and now we're going to wait to see if he continues himself, he probably won't though cause he's weak, but he's peeping a lot.
In the mean time, here's a picture of the 2 first ducklings, born yesterday. Both born late but extremely healthy and big. We had to help one out a bit after he zipped all the way around but was glued to the shell
He's moving a lot, did the whole round of the incubator but his head is still being dragged, I think he might have hurt his neck while being stuck in the egg