Sorry about that. These threads can easily get carried away and the subject changed, I've had it happen on mine with no answers. I would imagine that they could ovulate without pre ovy shed. From what I hear they are all on their own schedule's. It sounds like mine are exactly in the same situation as yours. Mine all had sheds exactly one month ago and I assumed it was a pre ovy shed but I havent seen any ovy's yet and I dont know an approximate timeline after pre ovy shed and ovulation. Also has she been on the hot spot or the cool side? They generally sit on the hot spot all the time after ovulation. Sorry I cant be more help. Good luck though.