Oh....our foster kitty, Binks, went into heat while she was still nursing her kittens! I can see why there is such a problem!
The vet told me a week!
It was the longest week of my life!
After 24 hours I didn't like her much anymore.
It was terrible!!! Cats in heat are HORRIBLE!
But hold tight. Don't give in. Don't throw her outside.
I've seen the light and it's good!
Binks has been fixed, she's healed, and now she's back to her friendly, wonderful, non-yowling self.
Oh yea....and she's no longer a foster kitty. She lives here now.
Good luck!
-Wendy