R
I empathize with you in this, however if she bases decisions based on emotions and how she has been hurt when she has met family of the person she is seeing, for one pregnancy can change all of that because it can stabilize their hormone levels. Another thing you can do is pray and maybe show up unannounced and accept this child as your grandchild, take her shopping and try to be a support without passing judgement. I think she has been hurt because one of her past relationships family has judged her causing a breakup and her to be uncomfortable. Her and your son just needs a good solid support system and a family who will love and support them in every decision they make, it doesn't mean that you have to agree with it, but just accept it. I don't really have a relationship with my grandparent because they are Mormon and tried destroying my parents marriage the night before the wedding because they didn't like my dad. If you want a relationship with your son, support him and love him without trying to persuade him to stop seeing her. If anything you should be proud that your son is stepping up and being a man to this woman and who knows he may be planting seeds with her