I'm sorry, I know this is a tired subject but someone help me quiet the voices in my head here. I've got Pekin eggs in the incubator. Started with 24 of them. At days 25 I had 18 that had survived up to that point. Day 28 was this past Tuesday and only 1 has hatched, I candled last night and now I've got 2 that look for sure like they stalled. 6 that have shown initial external pipping that started more than 24 hours ago but not progressing. Ive got about 5 more that show what looks to be internal pipping, and 4 that don't look internally pipped. It is now day 31. I've kept humidity up above 65 and temp at 98.5. Do I intervene? When should I and to what extent?