She was on day 13 of her heat and they tied for 15-20 minutes. He is 10 months old and she is 8 months old. This was 3 weeks ago now and her nipples have been swollen at the base for almost 2 weeks now. Her tummy doesn't feel much different. Can a 10 month old dog produce quality sperm to produce pups? I was intending to breed them in a year time, but he got to her and it was so quick, by time I got to them he had locked to her. They are pedigree dogs and have had all the tests and registered etc. Any information would be appreciated. Thanks.