Pregnancy is normally about 63 days, so you may have up to a week to go. Temps in the 99 range is heading downhill, but will likely go lower as she starts labor, though all dogs are different. But I HAVE seen many, many threads here on upcoming whelps that went on for days and days waiting for that true temp drop. You're right to begin taking her temp daily, and don't leave here alone from this point on, but you very possilbly could have a few more days to wait....................or not!
Point being, ya just never know, so stay close.
