
Next time, if you get the girl prog tested it will give you very good idea when to expect pups.
So good for mating at right time but even better for avoiding the anxiousness of when the pups will be due :-)!
I very much test for the second reason as know I would get anxious if I had a massive window of when my girl will deliver.
If you are really worried, I believe you can get a bloodtest that will tell you if she should be giving birth...