Dogs whelp between 63 to 65 days from OVULATION not from breeding dates or "ties" - this gives you a wider window of due dates if you bred her twice a week apart. If you don't know the exact day of ovulation (from progesterone testing) you really don't have an exact due date and your girl may not be overdue. Since sperm can live inside a female for up to 7 days they are often just there hanging out waiting for the female to ovulate and for the eggs to mature before they penetrate the egg.
A vet exam would be a great idea to see how your girl is doing, a vet can examine her and tell you what he things & make sure she is in tip-top shape. Also x-rays are very helpful in telling how many puppies are there.
Good luck
Teresa
Last edited by Teresamag; 04-11-2011 at 10:09 AM.
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