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. |