So day 21 was 8-26-13. I've had a few hatch and helped 2 that piped and zipped some but now I have one that pips inside but not breaking egg at all I noticed it last night when I checked for movements. My hygrometer was reading 6% lower than what it actually is I'm worried about it being shrinkwraped. Should I help it or let it keep trying. I candle it and see movement in air sac some but looks like a wing flapping maybe membrane.