Hi! So my duck egg has started to smell at day 28, I can't tell if its the incubator water or the duck egg itself. I tried candling and haven't saw movement, did the water test and still haven't seen movement, he hasn't even internally pipped. My question is can make a hole in the top of the egg away from the duck to see if he's even still alive in there? If he is still alive will this harm him in any way?