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Originally Posted by YorkieRose  Ovulation is not a one time process..it is extended over a period of days...that is why puppies can come from different breedings and different sires..
What day was your girls first breeding, if it was at 9 days in, and another 9 days later, it would be a 9 and 18 day breeding.....my best guess is the first breeding is the true breeding date. More bitches will breed later in their cycle then very early..at least I find that to be true.. mine will allow an 18 breeding over a 4 day breeding if I permitted. |
I guess dogs are all different for sure. Ive always had just the window of time of 8 days to 14 days of the heat. Occasionally one will stand longer or a bit earlier.