Have been incubating at the wrong temp advice please?!

Hi!

This is my first attempt at hatching eggs myself and I used a Brinsea 10 incubator, what I didn't realise was that I needed to have the temp at 39 for a still air incubator not 37.5 which I've had them at constantly.

My eggs have now been in the incubator for 23 days with no sign of piping and I wondered if there is still a chance they might hatch or should I cut my losses and throw the eggs away?

Any advice would be great thank you!

Natasha