I know it will drive you nuts, but the best thing is to leave her alone. lol. I have hatched many chicks over the years by both incubators and broody hens and to this day it still drives me crazy! I feel like getting pom poms out and cheering them on, lol. Think of it this way, eggs need heat, moisture and air. Every time you peek, you are making the mixture imbalanced. If you can make it another 8-12 hours, that would be best. Don't worry, they will be fine. As long as the chicks do not go more than two days without feed/water. 

