The small, short drops in temperature are normal I personally would not worry if she were mine yet. Her progesterone level must come down for puppies to be born, there will be some short drops before the last big drop. When progesterone levels drop, so does their temp, so they go hand in hand.
Her temp will drop about 2 degrees from her normal temp so if she is in the 99's normally then you are looking for a temp drop in the 97's more than likely. The temp will go down, may drop down further a couple hours later and will flucuate some, but will remain lower than normal until labor begins. I would be taking her temp 3-4 times a day at this point, especially with this being unplanned and your first litter. Keep track too, write it all down!
__________________ Jackie JaLa Yorkshire Terriers |