
Hard to say...what day of her season was she on when she was mated? I've known bitches ready to mate on day 8-9 and then again others on days 22-23! It's a bit like how long is a piece of string...I think the answers come with experience(of the bitch, not general experience!) I know some bitches that stay 'frisky' thoughout their pregnancy due to the changes in the hormones! Bitches do continue to lose lightly for a week or so after mating...try getting the 'Book of the Bitch' an invaluable source of infomation and the 'Bible' of Breeding!
Sorry I couldn't have been of greater help...all the best, Dawn