I made a DIY incubator, mainly as an experiment (https://www.backyardchickens.com/t/949818/my-basic-diy-incubator) and placed six eggs in it. One of the eggs has a smudge of poop on one side. I didn't think much of it, as it's not that much and really doesn't smell "poopy". Some people say that it won't effect it, some people said that they would throw eggs with poop on them out. Then again, I haven't found too much information on it. Could it be possible for it to develop? Thanks in advance!