congrats on such an early egg! I personally do not want mine to lay that early, but obviously nature had different intentions for this girl! When they begin to lay so early, their chances of having issues later are increased - such as internal laying, egg binding, etc.). Thus, I feed mine a feed that slows them down a bit, beginning at 12 weeks. JUST in case...for my own peace of mind. But, she must have been ready since you weren't pumping them with laying feed early. I'd leave the feed as is, and provide oyster shell. So long as the have free choice oyster shell, they'll be fine. Then, when the next begins, I'd switch them over.