Uni didn't get her first heat till 13 months, but that is not that common. Most get it by 8 months. It is possible she already had one if you don't pay a lot of attention to her lady parts. Some keep themselves very clean, but you would notice the vulva swell quite large. I was quite surprised how big it got.
Maybe some breeders on here can help out some more.
__________________  The T.U.B. Pack! Toto, Uni, & Bindi
RIP Lord Scrappington Montgomery McLimpybottom aka El Lenguo the Handicapped Ninja 10-12-12 
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