My coturnix quail eggs are not making any sound on day 16. help!!!!!!!!!!?

I kept the humidity at 70 percent and the temp at 100. I threw all the infertile eggs out and left the dark red ones in that were fertile. I heard that they should start hatching on day 16-18 But the eggs are not making any noise to tell me if they are going to hatch. help as soon as possible.