So my last batch of my attempt to hatch Copper Marans. I was watching the chick Pip, its beak came out and then this white oozing stuff followed. Is that something going on that is going to suffocate the chick? I haven't seen it move much more but it was like blowing bubbles. I can't open the incubator because a couple of others are also pipping. There is no smell, so it's not gone bad. And I did see the beak. Should I be worried or just let nature take its course?