As Pippa noted we do not allow any personal breeding discussions on the board. I note you have been a member for some time, though haven't posted in a long while, so recommend re-reading the information on what is OK to post in the Getting Started section.
You raise some important questions though. Have you really researched what breeding involves (there are some good threads in the Library section on what this really involves)? You should never, ever be breeding a dog whose entire family health history (via pedigree) is unknown to you (if she has a pedigree, why isn't she registered?) -- do you know the health history of her lines, of the parents and grandparents and great-grandparents, and have they been tested with results posted to, say, the OFA website? And you need to understand the genetics of the very serious health problems in the breed -- mitral valve disease and
syringomyelia being the worst.
If you have a dog age 3 whose parents have never been heart tested by a cardiologist specialist (NOT a vet -- this is too inaccurate!) or who have been tested as clear but remain under five -- then you should not even consider breeding your dog or using any stud til both are age 5 and only if both remain heart murmur clear as determined by a cardiologist.
Mitral valve disease is the single biggest killer in this breed and has cut a fourth to a third of the life expectancy of the entire breed due to indiscriminate breeding which has made this serious heart condition endemic in the breed. Please do not add to the misery so many families already feel when they lose another dog to heart problems. Half of all cavaliers will have this old dog's disease by only age 5, and the breed already only lives 7-10 years as is, when it should be living 12-15 years on average, entirely due to MVD affecting the lifespan statistics.
In addition unless you have MRId your dog and the stud you have no idea if both are affected by syringomyelia (where their skull is too small for the brain) -- research statistics currently show anywhere from 30-70% of cavaliers have this serious problem and there's simply noway any cavalier should be bred without you knowing the SM status of your dog.
This is such a wonderful breed to own and love and already at such health risk from casual breeding. Only breeders well skilled in genetics and health issues should ever be breeding cavaliers, to give them any serious hope for the future.
Finally, do you realise that a pregnancy is probably the single biggest death risk to your female outside of serious disease like MVD. Is she worth risking?
