Hi all! This is my first time hatching eggs and I've read the horror stories of rotten eggs exploding in the incubator. My question is, would the same thing happen under a broody hen? If so, how long does a bad egg need to sit under her before it leaks/risks exploding? I ask because it's day 6 so I candled today to check viability and couldn't see anything developing at all in one darker (Wellie) egg. All 13 other eggs, including a slightly lighter Wellie egg have clearly visible veining and embryos. Should I wait a few more days or go ahead and toss the one that looks clear now? Just terrified of the idea of contaminating the nest with a rotten egg! In case anyone is wondering, the broody is a LF blue cochin with 14 various eggs from my mixed flock, all eggs placed under her a week ago this evening. Thanks!