My pregnant yorkie

Question
My Yorkie's temperature has been between 99.2 and 99.6F for five day.
She was due on Saturday. she still has not had her puppies. She also looks very tired. she is sighing a lot or that is what it sounds like. Please i would really appreciate if you could help me.

Answer
Hi Sandra

Did you breed her over a course of a few days?  Are you 100% certain of her due date.

Other than the sighing does she have any other symptons? Restlessness or panting?  Did you do an x-ray to determine if the pups are able to be whelped naturally?