[Lady of Yorkies]

Autumn is due on the 9th, but we know that Yorkies don't usually go the whole 63 days. I am expecting her to go into labor on the 6th. I do not usually check their temps, I just watch them closer as their time is nearing. I took Autumn's temp because she has a vet appt tomorrow and she is acting like she might go into labor. Her temp is 99.7. So my question is: When the temp drops from 101 to 98, how quick does it do so? Does it take a few days or does it do it in a matter of hours? As the time to deliver approches, does their temp fluxuate? I don't want to take her to the vet if she is starting labor, I don't want to cause her any extra stress. Any info or any of your experiences would be helpful. Thanks in advance, Sylvia