Nannashirlz
Grandparents have no rights at all. No matter how much contact you had with your grandchild babysitting weekends etc I’m astray from one of my granddaughters I’ve begged and cried. Her mum went bitter when she split up with my son. I also know someone going through it right now and going to court in sept. My advice join group grandparents rights you will read so many heartbreaking stories from other grandparents going through the same thing.
You should be seeing your grandchild on your sons time, not their mothers time, or does your son not see his child at all? That sounds like the larger problem?
I’m very sorry you are hurting, but describing the child’s mother as “bitter” won’t help your case