How to handle NC situation

[NoArmaniNoPunani]

My sister has been NC with me for just over 3 years. She even came to my wedding and stood in the family photos without actually speaking to me. I have tried but she just won't communicate. Now I'm pregnant. I sent her a couple of scan pictures and did get a response to the first picture where she thanked me for sending it, but no questions, no attempt at conversation or asking how I am, so I left it.

Now I hear via my mum that she wants to meet my child (baby due December), but without me present. I don't really know how to handle this. Does my child have a right to know his aunt even though she's so cold with me? Short of never leaving him alone with my mum I don't know how I'd stop her anyway, or even if I should stop her.

Has anyone been in a situation like this?

My sister didn't come to my wedding and didn't go to hers. It was honest at least. We do not see each other and it is a good thing. i don't want to meet her children and I don't imagine she wants to meet mine. Mine don't know she even exists. That's life, that's ok. I dislike her a lot less when I don't see her. Maybe if I don't see her for 40 years I will manage to be polite at our relations' funerals?

People do agonise over truly going NC. It's such a sad thing to do to a family member that it takes a lot to make it happen.

Your sis cannot expect to have contact with your DC while she is NC with you. And it should be made clear to your mum that if she goes behind your back or posts piccies on Facebook, she will only have supervised contact.
You will never know how your sister is treating your DC or what she is saying to them, especially when they get older. You need to be able to trust the people who have your children 100% - it does not sound like there is any trust there at all.

Your sister sounds more and more destructive - NC definitely seems the right answer.