My cat seems to have stopped giving birth but i think there are still more kittens inside, is this ok?

my cat just had 2 kittens, but when i came in to the room after i got off work she birthed the 3rd and ignored it, by the time she removed the sac it was two late I held it and gently rubbed it trying to bring it to life when nothing happend I cried for like an hour, its been about 2 hours since the kitten died and my cat seems to have stopped giving birth...is this normal? she seems fine and isnt pushing anymore the other 2 healthy kittens are eating and happy already fighting over boobs :)