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[quote=BluHouse] 63 days is the generalized average, this means some
dogs will whelp sooner, some later, 67 days is within reason although I would be nervous if it was my own dog. This is from the LH surge ovulation, two completely different things. [/quote]A bitch’s due date is 63 days from ovulation. Please refer to Dr. Greenfield article posted earlier in thread.