Hi, Pete, welcome to BYC. Extremely small or 'fart' eggs can result from a variety of causes. The move to a new home may have caused the production of this egg. Hopefully it will not happen, but hens frequently stop laying 2 or 3 days after being moved into a new home. Yours may take a short break before resuming production - or they may just continue to lay eggs.
Thanks for the reply,
Hopefully the girls don't stop laying its been about 5 days and they have continued to lay with a slight decrease in production on the 4th and 5th day although it was pretty cold those days so maybe that slowed them down a bit. Either way they'll be back at it sooner or later.
Thanks,Pete