
Especially with a first time Mum I sleep with an ear open for every squeak like you learn to do when you have a baby.
Once their eyes are open at 2 weeks assuming she at least appears to be careful then I have gone to my own bed with a baby monitor, but my breed is only 20kg,and pretty natural mothers.
Yes the growling at your Mum is natural, was what I meant about building enough Trust in a previous post.
She will relax more us pups become less helpless.
As you can't know how relaxed she will be, Covid permitting I would not allow any potential puppy owners to visit before 4 weeks.
Introduce Mum to visitors away from pups, and if she seems happy do your interviews with them while they fuss her. This will allow them to gauge her true character.
Then with mine I wll lead the visitors to where pups are with Mum in tow.
She will probably jump in with them to feed them.
Do not let people handle the pups at this stage.
For safety I'd then take Mum away and give her a treat.
Then allow people with cleansed hands to interact with pups on floor, no picking up.
My own Mums love showing their pups off from a young age (as soon as eyes open), but would get anxious if pups picked up.
I have friends in other breeds where Mum would not tolerate strangers with her pups.
You will have to play it by ear.
It is more important for visitors to meet Mum, and for you to gauge how people are with her (kind, but firm is what your looking for).
I remind people that within 4 short months of bringing pup home it will be nearly as tall as the Mum.
I would now let your rescue contacts know that the pups have arrived.
Start taking photos/ videos each week to show vetted new owners.
Set up Zoom etc for distance viewing for both you and them.
You want to see round their home where pup will live especially round the garden to gauge safety and security of fencing. Ensure fence panels are heavy duty hedge boundaries re-enforced etc, Gates secure and lockable.