Think like this, how long would the average hen sit on eggs before getting up to eat or drink. How long would she be gone? Average time off eggs 20 minutes and in beginning, a trance takes over their bodies and they stay in that state for quiet a while. They know first three days are important because that is when blood vessels are forming and very fragile. I would say no they will not make it or you may loose them at candle. If you believe that this has not happened to all of us, well let me tell you I stressed over loss for so long. But then I remember we all have a date and we learn and turn around and go collect some more. It sucks but we are not in control of the process 100%. Chin up, and just think, you may be able to brood them outside and “stupid incubators” we say lol and then its
“why does this always happen on day 20, really?” Lol. Get out there and start collecting! Here is an outside of the box idea. Next time, heat oven to ‘keep warm’ and get one of those oven thermometers and set in to get ‘keep warm’ temp. Open door to width you need and incubate your eggs and warm the house. Or try using a heat pad to create ambient temp overall which may be enough to keep vessels growing. If your the age you say you are, I hope when I grow up I am just like you!