If it was cheeping, then it had come through the membrane, but maybe the hole was so small that you didn´t see it. When you tried to make a hole in the membrane, it bled. You stopped. Well done, right thing to do.
Now, just keep it damp, and leave it. It´s not ready to come out until all the blood has drained from the membrane. Your part is to keep the membrane moist so it can breathe and move. Don´t take any more shell off yet, just let the blood recede in the membrane.
That's a really good point about it possibly having pipped but only making a tiny hole. I hadn't thought of that but it makes sense. Explains the peeping etc...
If it has pipped though, won't it need it's nostrils free to breathe? My concern is that it could suffocate?