I cut the rest of my eggs a good day after the first 5 had already pipped. One baby who made it hadn't pipped on its own. I may have saved it, or it may have just been taking its time. One baby that died was twisted in its umbillical cord. Could I haved saved it by cutting earlier? Perhaps, but I don't know if it was worth the risk to the others. In doing some research, I found there were more possible complications than people let on to.