Your right, it is still positive. This early in the year, and with them being her first eggs after a break I doubted any would be fertile. 3 out of 5 were, that is 60%. I did not have that percentage last year with 4 hens laying when I set the first round of eggs. To top it off, we were in a cold snap when the eggs were laid, the first one really caught me by surprise and was very cold when I found it. It could have been partially frozen. If the one did quit, it is not shocking, it happens, even later on in the year I have come to expect a few quitters. What I do not need to happen is have a single chick hatch. If that happens I will either be scrambling around looking for another chick of similar age, or try to place it with someone else that has chicks. If it was being broody raised a lone chick would not be the end of the world, but not ideal when you are brooding them yourself. I was at both tractor supply and rural king this past weekend, neither one had chicks in yet. I've got everything possible crossed hoping for 2 to hatch.