Took my stray in for a spay, found out she's pregnant..

So, I had a beautiful little stray Tortie w White show up around May 5th.. I would have judged her age around 2-3 months as she was a tiny thing. She was not undernourished or skinny, just clearly very young. She was very vibrant/healthy and was eating well. I live in Tennessee and had already lost my most beloved Tuxedo cat Tommy to Bobcat Fever, so I had already made the decision to keep this one inside at all costs. I have been working crazy hours and had not yet been able to get my new kitty (named her Maybelle) to the vet. Today i found out that she was pregnant when she showed up! I never would have guessed that was possible given how little she was just a few weeks ago. The vet said she was too far along in the gestation period to be spayed, and I'd have to let her have the kittens. Now I'm pretty excited about keeping one or more of the litter. My biggest fear is that Maybelle is still very much a kitten, and is extremely rambunctious at play. Gracefulness is not her strong suit, and I'm worried that she is going to over exert herself and possibly do harm to herself and her brood. Anybody have any tips to calm her hyperactive kitten disposition?

I do have two different answers.   One is, you try to find a more experienced vet.  Perhaps one who use to cooperate with shelters around, and thus is used with late surgeries.    They arent dangerous, but the vet must be experienced surgeon.

Besides, She cant be THAT late, if you didnt noticed antything before just now.     Not pleasant, but the delivery in itself isnt totally riskfree either, her being young and smallish.

Second answer.  Being pregnant isnt no disease.  So if she IS healthy and movable, it isnt so dangerous.   Women in sports are  encouraged to train, sometimes even compete, into quite late.

The only exception are full contact sports.

Good luck!

Thanks StefanZ.. I trust this vet very much given the way he handled the care of Tommy when he got sick. He said that he would have gone ahead with a spay under different circumstances, if she was a healthy indoor cat of a mature age. This cat however had no medical history and was obviously very immature. He was at least able to tell me that she was negative for Feline Leukemia/AIDS. The danger was that a cat of that size could lose a great deal of blood and become very anemic in the course of surgery. He advised me not to risk it and I agreed. I have no problem with her having the litter, I'm pretty excited now and will keep at least 1 of the kittens. I've already been researching kitten care and breeding in felines. I'm hoping that a big Bi-color black and white feral male that I see fairly regularly is the sire, that way maybe I'll get another Tuxedo male kitten!