My hens started laying two weeks ago, and today was the first day we found 2 soft shelled eggs. Since they started laying, today was the first day that it was over 100 degrees. I didn't know if the heat could stress the hens out enough to produce soft eggs. I thought, if anything, they would not lay today. Or is that just a factor? We haven't been feeding the girls oyster shell. Our feed has added calcium and the mill hasn't had any complaints on this mixture, it's Blue Stem Organic Premium LAyer. Am I freaking out a little early? We did get two regular eggs today with the soft ones. Do I need to wait until this happens again to worry? Or should I supplement with oyster shell just incase.