On April 27th I put 2 Mallard duck eggs in my incubator, so that means they should be do the 25th of this month?!?!?! Correct? Well I candled them a few days ago, and they were all black, with a huge air bubble, which I found weird, because they weren't due for a week.. And I just now candled them and one is in the air bubble pipping!! He is very active, but will it be okay since its early? They take a few days to hatch so it won't be too early, but still.