My lone surviving hen has been sitting on 5 eggs for 25 days. These were laid 3 weeks after my rooster died, so I'm pretty sure they're not fertile but I let her sit since I was sure she was lonely and it gave her something to do. Now my question is, I do have some eggs from January and February -- that I suspect are fertile as my rooster was very active. Do I try switching some of these with the eggs she's been on? Do I just take the eggs away and give her a break from sitting? Would appreciate any advice! Thanks!