Yup--don't panic until it's been well over 24 hours. Pipping is hard work. They like to rest and absorb the rest of their yolk before the hard work of zipping & popping.
If you like, you can "cheep" at them a little and it will sometimes cause them to move a little (especially if you can see the beak). That might set your mind at ease but by the same token, don't panic if they *don't* move when you cheep. They're tired!
I'm at the same place right now. This is my 1st hatch so I am trying really hard to be patient. I had 2 pips when I came home last night so it's been more than 16 hours now. Now I am up to 4 pips and the 3rd one to start is zipping.
they will be fine. dont open the bator, but look all you want. its a lot of fun watching. and as you will find out, incubating is very addictive. my first bator ran stop for 8 months. its hatching fever. good luck........
You know, I always sit on my hands and do nothing (but I really want to.) Then if one dies I kick myself in the behind about not helping it. It is so hard to make that decision. Sometimes I am just so confused. I guess I should just remember to leave it alone no matter what, and whatever happens it was nature.