My mom used to sayJonathonD said:Talk about defensive...
"If you can't say something nice....don't say anything"
Jon, how about just answering Zoeybear1 instead of lecturing other experienced breeders? That's a choice you made.
Ok, I'll start: first of all, your vet can help you honey with the whole cycle thing, but as Annmarie has pointed out there are lots of threads and posts that could help you in your learning too, about specifically understanding a dog's estrus cycle. And of course no two dogs are the same so when a bitch is fertile is really specific and nobody can really say for sure about your dog.
Is there somewhere that you have given anyone an introduction to you and your Doodle and your plans to breed her? Do you have an agreement with your breeder who sold you Zoeybear that lets you breed her? Is this all covered somewhere? If so I missed it.