Is it a still air? From my understanding, and if Mohillbilly gets on he has tremendous knowledge, in a still air the temps are supposed to be higher and you have to measure at the top of the egg. That's hard for me to say anything on the humidity. This is my third attempt and on the first batch I kept the H in the upper 20s to 30s range. I can't say much about those guys because I messed it up for many reasons. My second batch the H was in the 20s and they were all shrink wrapped and none even pipped. This time I kept the H in the upper 40s to mid 50s range and it appears to be working. I will say I met this really nice young lady who lives TX and she uses a Hovabator and doesn't measure the H, just keeps the trays filled up, and she has great hatches, and I met another person recently over in KY who said the same thing, just kept the water filled up and doesn't measure and has great hatches. So if you kept the trays filled up, that is probably okay.
I personally know how hard it is if they don't make it. I understand all the emotions that come with that knowledge. If that does happen, my best advice is to do the eggtopsy and learn what happened so you are able to go forward and have a successful hatch next time.
I forgot, what kind of incubator are you using? And, give them some more time just in case they are late. I can't offer any advice on helping them out of the shell because that has not worked for me either..........take a deep breath.......