Hi Babe,
Do keep trying. I have the exact incubator and this happened to me first with a batch of quail eggs (which were bought over the internet) and then with my first batch of hens eggs.
The third time I tried them with my friend's fresh laid eggs, I know not everyone can get eggs this fresh, but this does increase the catches of success which is important when you are only have three to hatch.
Before putting them into the incubator I left them to rest for a day at room temperature. After starting the incubator I only candled the eggs once at eight days and as all seemed fertile, left well alone after that. This will test all your will power as you will be very tempted to keep opening the lid and candling the eggs, but this all reduces the chances of success.
When the eggs stop turning three days before the due date, make sure you gently place them on the plastic hatching base without turning the eggs over.
Out of my three eggs one went bad and started to seap and so was removed at around day 15. But the two others hatched and I have them now. A last important thing. Do not be tempted to remove the chicks until one day after hatching. They will be chirping their heads off and look very squashed but they are perfectly OK. Also look out for curled toes and spindle leg, especially if one egg takes ages to hatch. I got this with Itchy, who took 9 hours to hatch. In the end I helped by peeling back the shell. You are not really suppose to do this, but after 7 hours trying to hatch it was a make or break situation! Scratchy exploded out of his egg 10mins after Itchy and needed no help whatesoever!
This is a great little incubator, especially if you have children as you can see what is happening and it's small enough to keep indoors. So don't be too disheartened. Success will be all the sweeter when it arrives!
Mambo