I'm excited and nervouse. This is my first hatch and was wondering if they should be chirping they are on day 20. When will they start pipping I started with 8 eggs and now have only 2 left due to not getting a steady temp in the beginning but 2 baby eggs made it and I am scared they are not ok because I have not heard or seen anything the temp has held steady at 99 for about 15 days now and humidity is 68 are they ok???