> im ovulation testing and im worried i wont get the right day.
If it's Idexx they usually give you a suggested window for mating. I usually do two matings, the first one on their earliest suggested day, and the second mating two days later. No-one's missed yet. I think Keith Shea's service gives similar advice to Idexx, but you post the sample off yourself.
The only time I've had more than two matings was when we used our own dog, and then the 3rd one was a bit half hearted I thought.
And I've never left any of our bitches anywhere, much prefer to take them twice. Except for once when we went abroad and only had one mating. (That resulted in a huge litter).
Good luck.