I had two the hatched this morning and its the 26th day. I just put them on lockdown last night. I know i seen two charts on the internet that said 26-28 days but i seen more than that that said 28, so how do i really know how long. bc last night 4 out of the 6 was already cracking thru. will they be ok? these are i first guinea that ive hatched myself. i know the temp was right it was 99.1