Thanks everyone. The oyster shell seemed to do the trick. I also had another layer give her first egg today and it had a hard shell. Yay!!
Now the only one I'm waiting for is my Black Star..... Ironic... I thought she'd lay first. :)
Currently I'm feeding my chickens Nutrena Natures Own Layer Crumbles. After doing some research online I've seen some people complain about thin egg shells. I have one girl that is laying out of my 3. She's only laid 2 eggs but they were both rubber eggs.
Out of curiosity, are all layer feeds...