
Hi Guest,
Lines of breeds can often have quite predictable timings for seasons - if you are still in contact with your breeder it is worth contacting him/her and asking what the pattern is like in your puppy's lines. As a VERY rough guide :P seasons in a breed of your size can be anywhere between 6 and 12 months although some bitches could be considerably less mature than others and so be a few months older.
Regards, Teri :)