3 of my eggs look like they are fine on one side and the other side looks dry/hallow? Probably no good right?Today would be day 19 for them. I didnt see movement with them either.
Half is hallow? Are you looking at the air cell? Some evaporation does need to occur so the chick can internally pip, breahte, and then make it out of the shell. If it really is half hallow... maybe your humidity was too low. Should only be about a quarter hallow.
I can't see what you are seeing, but if it's day 19, I'd just let them go till day 22 to see if anything happens before cracking them open. Best of luck.