Hello BYC!! I'm so excited. My husband and adult children decided to surprise me for Mother's Day and build me a coop in my garden area of our property!! The coop is nearly done and is looking mighty fine. A few days after Mom's Day, I got on eBay and read a bunch of reviews and picked out the very best egg sources and ordered, 6 Barred Plymouth Rocks, 6 Silver Laced Wyandottes, and 12 Buff Orpingtons. The PR and the SL came first, and I placed them in the incubator in the egg turner. The Buffs came 4 days later, so I added them. today was day 19 for the first eggs set, so I had to take the turner out, and place all the eggs on the grate. Tonight when we got home from dinner, I heard my first Peep coming from the incubator. I'm so stinking excited that I may have chicks soon. However the buffs are only on day 14 and I still need to turn them, I think? Is it going to mess with my hatching eggs to open the incubator slightly to turn the others? is it late enough not to turn the buffs anymore? I've candled and have good eggs growing, only 2 or 3 questionable ones, so I don't want to screw this up now!! Day #6, had a rotten egg, found it and got it out without explosion...

Sorry this is a novel, but I'm just so excited!!
Sounds like you have a staggered hatch. Those can be tricky. I think the biggest problem isn't not turning right now but more raising humidity for hatch can drowned the others. I always keep a second incubator hooked up for hatching. Hopefully someone with more experience doing staggered hatches can help. For now I would keep turning until you see an external pip in the hatchers.
Trish