I think it was actually after Pepper was two that she had her first full blown, bleeding everywhere, super obvious heat. She had a heat cycle before, but the only indication I had was how Auggie was reacting to her.
Georgie's was somewhere between one and two.
If you don't have a male dog around, heat cycles are only a PITA because they have to run around wearing panties. (Or if you have a sport dog, they can't compete while in season.) That's about it So even if she does have one, it probably won't be that big of a deal! Just annoying haha.