I'm on day 20/21 (i set mid-day on april 19). Lockdown was screwy at first, but i got everything controlled by saturday afternoon and am darn near positive i've seen bits of movement from all my eggs. 3 eggs, homemade still air incubator, eggs from the nesting box, everything is going swimmingly. This morning my most active chick pipped sometime between 1am and 430am. It's doing great! Strong chirping sounds, nice white, flappy membrane around the pip hole, moving around. I suspect it will work its way out by this evening! The other two have no signs of breaking through yet, but there is also no smell, so i have no reason to believe anything is amiss. I just wanted to clear up a few things 1. The eggs were gathered over 2 days, but set at the same time. Is it reasonable to expect the other 2 eggs to pip within 24 hours of the first egg? Or do people expect the eggs to HATCH within 24 hours of each other when they were set together? Expect isn't a hard and fast term for me, more of a guideline to help me keep an eye on things. 2. If they dont pip, and there's no movement (i havent seen any movement in at least 18 hours but i think that's good from what i reading-get into position, rest, pip, rest, zip) waiting until day 22 or 23 to make a pip hole is the game plan, right? 3. Are there any signs that a membrane is going bad once the pip hole has been made? Does it discolor or stop being so flappy? Right now it moves like tissue paper (real life, i disinfected a pipe cleaner and put it through the vent hole just to see what the membrane moved like because i am an overly curious person).