we bought 6 eggs to put under our broody. 2 got broken early on. One hatched 2 days ago but didn't fully make it out of the shell so it didn't survive. The remaining 3 have been under her for 26 days now. I tried candling them tonight but couldn't see light through 2 of them but saw a little light on one half of the egg on the long side. What to do? Let them stay under longer?