Hi all. I have some pullets that are just beginning to come into lay - different breeds - Red Star, NHR, GLW, RIR. All hatched 8/19/08. The Red Star starting laying December 25th. The NHR or GLW started sometime around Jan 8th. We know for sure the NHR has laid at least once, but not really sure about the GLW - I've just seen her in the boxes and some days we've gotten 3 brown eggs. The RIR has red combs and wattles but doesn't squat and I've never seen her near the boxes. The Red star has been laying faithfully since she started and only laid 2 pullet eggs before getting up to full size - the other brown eggs have been pullet eggs or medium. I've suddenly begun getting eggs with either no shell or very soft shells. I think they have just an inner membrane, my husband thinks they are very soft shells. We had 2 on Wednesday and 2 this morning. They've all been in the sand under the roosts. One this morning was under my Red Star, and I haven't gotten a normal egg from her yet. I've read the posts on here about hens sometimes starting up this way, and also IB. I don't think my chickens have that; none of them have ever been sick at all. I'm most concerned about the RS, because she was laying well, and then did this. We already do everthing the posts have mentioned - they eat layer, they have access to oyster shell, we feed yogurt as part of treats. (though the RIR might not get much - she's quite indifferent to treats). The only other thing I could try is vitamin D supplements in the water. What do you guys think? Is it too soon to worry? Is is more significant that a hen would be laying and do this rather than do this as first eggs? Would the supplement be a good idea?