Yes, Rini, my breeder is the same as you on that subject. She won't let anyone around them when they're nursing and she won't let anyone touch them without washing and sterilyzing their hands later.
I am so happy, though, that you have the prospect of a puppy and I do hope your mom falls madly in love with them. Perhaps you could take a few stuffed toys over that the puppies could play with later on and you could bring one back home when/if you bring your puppy home. Good luck.