IS it possible for a cat to stop getting pregnant after 2 delivery's?

My cat Casey was pregnant twice b4, she had 5 babies the first round then 4 the other round, I though she be pregnant last month, but I guess she ain't, so my question is there a opportunity she cant get pregnant anymore?
No this isn't true. Get her spayed asap, if you thought she was pregnant but never give birth could mean something bad.
Please spay your cat so you can be sure that she won't get pregnant again. That's the only road you can be certain.

Spayed female cats live healthier lives and hold a reduced risk of many illnesses. Plus, they don't contribute to the massive pet overpopulation crisis.
Answers:    Your cat may not have been pregnant, or may enjoy had a miscarriage or may have had a pregnancy that reabsorbed. Time to see a vet for a check up. Yes she can bring back pregnant again - dozens of times more.

Please research what happens to the majority of kittens of cats who are not spayed. Your local Humane Society or Pound will tell you and show you.

Also look into what happens to cats that are allowed to roam. The diseases out nearby that affect cats now make AIDS look like a bubble of fun.
What happen to the 9 kittens? Where they all spayed and neutered and are they living forever with you? Cat's will save on getting pregnant unless you have them spayed.
Your cat will continue to get pregnant as long as she can be in motion into heat. She needs to be spayed.I suggest it and it will aid her too. She's been a mommy and now it's time for her to not have babies anymore.
yes
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