Yes, if by day 7 you don't see any growth then they won't hatch. Good luck with your incubation!
I try to be careful making blanket statements because as I stated earlier, I wait until 10-14days because frankly, sometimes my eyesight isn't very good... I didn't mean that if there isn't any growth by the 7th day it would magically appear, I just meant sometimes I give it a day or two and make absolutely sure because I have tossed viable eggs before.
