Hi - This is my second attempt at incubating and the first time around I had great success. 10 out of 12 hatched. However, this time put 6 eggs in and only 1 has hatched on day 21. It came out perfectly and quickly. I left the hatched one in for 2 days so I didn't have to open the incubator but still no pipping or any movement. How long should I wait for? Could it be that the eggs I purchased were not good? They were from a different person this time. I did everything the same this time, in fact, I was probably even more regular with turning and maintaining humidity.