Could a second one be laying?

I know that silkies all lay cream colored eggs. My #1 layer has been laying a dark cream color with occasional speckles on it. She's been my only layer thus far. We got 2 new silkies a few weeks ago, who are close to laying age.

This morning I got a VERY pale cream colored egg (almost white), a little longer and thinner then my #1's usual size. Never seen one of hers this light. Could one of my new one's be the new layer, or is it possible my #1 can actually lay one so different from her previous? I thought they always laid the same color, but could shade change?

I'm going to keep watching them to see, I just figured the new one's need a couple more weeks still... they are about 22 weeks.

 

Thats what my concern is. I have ALL silkies. My white silkie is my #1 layer with the dark cream/tan/speckled eggs. My new silkies at laying age are black. I also have a buff girl and roo who are only 12 weeks, but I'd like them for hatching. They are really pretty buffs.

But I'm just wondering if my blacks had an early surprise for me! My white didn't lay until she was 30 weeks!!!