I am on day 20 and I candled some of them and no pips or peeps.I am worried but they show that lots of them are living.
Opening the incubator this close to day 21 can delay or mess up your hatch. Keep it closed and don't fuss with the eggs. Opening the incubator has changed the hatching environment. This is the hardest part. It is sad to see so many failed hatches come at the very end. Hang tight and don't open that bator.