It's easy for me to tell you to start over because they aren't my eggs.
If you really are at 14 days you should at least be able to detect an opaque/black dot about 1/4" or greater in diameter (with or without veining). If you cannot detect even a dot within the egg then there's nothing there and I would start over. However, if even only 1 egg has started to develop then you'd get something out of this and I'd keep going for the 1, but you might want to get the most out of your incubator so you might want to start anew.
If those eggs are 14 days old-----you need to star over. Sorry