She's produced two little grey kittens within the last 3 hours.. Didn't really know what to do with #1 at first but she took care of #2 without any of my assistance! So proud of her right now. I felt around her belly & couldn't feel any more in there, but time will tell! Thanks to everyone for your helpful advice I still need to get around to snipping their cords.
Unless the placenta is still attached or they are tangled leave their cords alone.
Otherwise, tear - don't cut - as far away from the kitten as possible. If you cut a cord it bleeds a lot more, tearing makes the blood vessels in it contract which stops bleeding. Your fingers are fine, just wash your hands well first. Remember mum normally breaks it with her teeth, and her mouth is full of bacteria.
Cats do sometimes go several hours between kittens - I think some people here have reported as much as a day. Is she happy and feeding the babies she already has? If so it's not a big rush, but ring the vets when they are open and remember a 'just to be sure peace of mind' visit during normal hours is far, far cheaper than an out-of-hours emergency.
And it can feel like there is a kitten left when there isn't but the vet will be able to tell by feeling her much better than you. If you take her, take the kittens as well.
Third kitten came about 3 hours ago, precious little thing! My mom seems to think there's still a 4th one in there but I'm not sure. Everyone is happy & feeding well
She ate almost a full bowl of her food & drank a ton of water! She ventured away from the kittens for a little bit but came back as soon as she heard them crying.