Reply #5: Best thing you can do is leave her alone

[LeftyMom]

Just keep an eye and if she doesn't lick and otherwise try to revive any slow starters you can rub them down with a towel to stimulate circulation and to try to perk them up (but mom's touch is better for this, so let her do her thing if she will.) Other than that she should instinctually handle the job. Make sure mama kitty has plenty of water and high quality food, she'll need it for lactation especially if she has a large litter.

Oh, and to follow up on what Hissyspit said: Call the vet now and make an appointment, you'd be amazed how fast miss kitty can get herself knocked up again.