Too Early ?

Vet said Stella due April 22 , based on Progestron tests . Now says maybe April 20 to April 22 based on size of puppies . Last night her temperature dropped to 98.5 , indicating show can begin any time . . . any  dog time ! Sat up all night watching Stella watch me ! This morning she was holding at 98.6 . We could have another 12 hours on Dog Time !