
I only let mine breed three times ex. Mon Wed Fri I also kept track when they bred and how long the tie was. Then kept them apart. I would take the first breeding as day one and count 63 days and do that with the last breeding, this way I knew give or take in between that time she would whelp. I would also take temperature the last 2 weeks of pregnancy according to the first breeding, I took this always at 7am, 12:30pm, 4:30pm and again at 8:30pm. I know may sound over board but I made sure it was always that time and when her temperature dropped I knew it would be within 12-24hrs.
I take it your bitch has had all the tests that are required for this breed before you bred her, and that she has had at least 3 heats, and is a good example of the breed and both dog and bitch compliment eachother. If not then I would get the jab and do your homework before you breed from them again.
Must say I have never heard of a bitch going into heat and standing that fast...Are you sure that is the day she came into heat? My bitch never stood till day 10 or day 13.