Hopefully I'm posting this in the right spot. My cat had her kittens today. She had the first one at 5 pm and by 7pm she had 3 more, so a total of 4 so far. I can definitely feel at least 1 more. But she hasn't had it yet. How long do I need to wait until I should call the vet or take her in? It's 10 pm now. She seems to be doing fine, she is nursing the babies and she even ate a little bit. I'm just starting to get a little worried.