When Can A Person Touch A Newborn Kitten Without The Mother Neglecting It?

Occasionally a mother cat will reject one or all of her kittens. Rejection of the whole litter is usually due to stress, fear, or some other psychological problem. If only one kitten in the litter is rejected, it is usually found to have some serious defect, and seldom survives even if it is given intensive care. Usually mothers don't reject their kittens because of human contact.

My cat had five kittens two days ago, I made a nesting area for her in my closet and that is where she ended up having them at. I would like to change the blankets in her nesting are. I have not yet touched the kittens. I have pet her a lot when she is feeding the kittens and looked at them a lot. She purrs very loud and seems to be ok with me there. Is it ok to change the blankets the babies  are on. They appear to still be clean, but I have read that they need to be changed once a day. I will have to pick up her box and take the kittens out to do so. Is this ok.
Thanks

I want to know 4 new kittens born yesterday  I have gently picked one up about 10cm and gave it a stroke ans gave him/her back is this okay

I believe you have to get the confidence of the mother. You have to treat her good so she knows you can trust her. And you absolutely must let her come into the house while you are carrying her babies. If she doesn't want to be inside she will carry them out one way or another. And there will be nothing to do about it.

My cat jus delivered 5 kittens today one was dead at birth and one was still in sac so I put the kitten close to her head she seemed to eat the sac off but now she seems to be rejecting it now is it because I touched the kiitty