Dogs can frequently go past their due date. 63 days is just the average gestational time. If your dog is past the due date, you should have been able to feel puppies moving around inside her and thus know she conceived. As long as she hasn't gone into labor and been straining to deliver a puppy, you are ok.
If you haven't or can not feel puppies moving around it is possible she is experiencing false labor. I've found it easiest to feel puppies when mom is lying on her side and feeling between her rib cage and hindquarters above the breast area.
If you've felt puppies, here is one way of knowing when your dog with have her puppies is to take her temperature twice daily at the same time each day as her due date gets close. Keep a record of this.
A dogs normal temperature is between 101-102 degrees. Her temperature may rise and fall during this time, but once her temperature falls below 99 degrees, she should go into labor in the next 24 hours.
You may also notice her breasts swelling during this last week of pregnancy and some milk leakage. Dogs will usually become restless and increase their digging and nesting behavior during the last week. You will notice an increase in her panting as well. You may also notice some abdominal contractions or rippling as her time grows closer. Do not be surprised if your dog is very restless and vomits as few times during this last week.
Once your dog's temperature has dropped, please do not leave her alone in case of complications. As she enters actual labor you should be able to see her contractions and most dogs will begin looking at their hindquarters. An increase of licking of the genitals is normal before and during labor. Be sure and have an emergency Vet’s phone number readily available just in case of an emergency during the birthing of the puppies.
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