If you plan to spay later then you need to concentrate on security! When she needs to go out,only take her into your own enclosed garden, for as short a time as possible and keep her on a leash.Keep your eyes open for anything large and male than might jump over a wall. Just because she can't get out,doesn't mean that something can't get in. Definitely keep her in lockdown for at least 21 days.
I have an unspayed 2.8 year old bitch and because my home is all tiles and wooden floors it's easy to maintain good hygiene.Cavaliers are small and don't create nearly as much mess as you'd imagine.
She'll be very grumpy and almost depressed for a few days before it happens and you'll soon see the little spots of blood.
Just wash her bedding frequently.
I think the decision to spay depends on the environment as well as medical concerns.If I lived in an urban environment,I would have spayed Daisy three months after her first season.As for the coat, Daisy still hasn't got very much of a coat and likely never will.
I'll probably get around to having her spayed eventually
Sins