
Given the breed and how often a C.Section is needed, I think I'd be involving my vet either today, or for sure, tomorrow. Bearing in mind for every day the litter will continue to be growing, maybe making a 'Section more likely to be needed, even if she comes from a free-whelping line. And if the owner of the stud dog is experienced, I'd be talking to them too! With mine, not the same breed, who more often than not went into secondary inertia, I only let them go 2 days over from the first mating. Yes you can sit and wait, and then lose the lot!!