I have a little bantam hatching today or tomorrow - it's actually not 21 days until Wednesday though. So anyways, there's signs of pipping now - I grabbed it for a quick candle this morning and I can see a little bobbing up and down of the membrane. Problem? There seems to be a bit of fluid - like a tiny bit - in the air sac. Having never candled a pipping egg before, is this normal? It didn't have fluid in it yesterday at all, only since it started trying to pip the sac.