OK Quail eggs, I'm not that familiar with. I think those 17 days(?) but it depends on the breed/strain.They are quail eggs and maybe we got to nervous
Maybe @Kiki can give you some tips. Candling is your best bet, but personally, I wouldn't put them in water again.
Hens go broody when you don’t want them to… and won’t go broody when you do. 
