With my leopard eggs, I had real good timing with one female and her eggs would hatch between 100 and 120 days typically. My second female laid a few clutches this year, some fertile, some not. Most of her clutch hatched 110-130 days but I had 2 eggs left which still looked viable. I left them in the incubator for a while since they were my last two eggs of the year, and after about 170 days, I decided they were done. I unplugged the incubator on Monday and planned to clean it out over the weekend. That Friday my sons says an egg is cracked with a head sticking out. Sure enough, one hatched after all this time. He's tiny and has a few split scutes but seems very healthy. So I guess you shouldn't give up on them until the eggs prove they are no good.
And I plugged the incubator back in, just in case the last egg is still good.
And I plugged the incubator back in, just in case the last egg is still good.