My broody is on day 18. I haven't seen her get off her eggs in 2 days. It's 98 today and will be 100 tomorrow. The coop is in the shade but I'm still worried. I brought her some water today and got her to drink it. Does she know she's nearing hatch time and that's why she won't get off? She used to get off once a day like clock work. And if nothing hatches what do I do?