Does your incubator have enough water in it? To keep the humidity up? You could help the chick but it is risky you can kill the chick. For instance one time I had a chick start to hatch but the egg got so dry and stuck to the chick he couldn't get out. So I did help and he was fine. But if the egg is not dry then he could bleed to death because of all of the veins on the inside of the egg. You should probably wait. But its totally up to you hope this helps. The most important thing is to keep the humidity up so the inside of the egg does not get dry and stuck to the chick making it extremely hard for him to get out.