First time hatching eggs,not sure what looking for.eggs are at 18 days which what i pick up is now lockdown.day 1-18 have kept near as i can -humity at 50% and temp at 90-95 but have had occasions when temp has dropped to 77.2 and risen to 101.4 how badly would this effect the chance hatching.Also think i can smell a bad egg but should i check and remove or just let eggs go full term as its in lockdown nigel 5764