Hello - I'm new here. I have some eggs in the incubator at day 15. I'm supposed to go away overnight, leaving on the 19th day of incubation, coming back on the 20th day. My question is - if my husband is home to watch the eggs, check on the temps, is there anything that could go wrong before I get back? My husband isn't as 'into' this whole process as I am - it's my project. Are the 19th and 20th days a 'make or break' time, so that I could ruin my hatch by not being there to watch over them?