That is a hard position to be in. First the chances of everything working out perfect as far as timing while you are in the hospital are fairly slim. The inlaws would have to come at the exact perfect time that the baby able to go to the nursery. What will you do if you do see them? Meeting at the hospital once is one thing, but the more important thing to think about is what to do going forward. They are the child's grandparents and they do have a relationship with their son. You and your H may need to meet with a counselor a few times to try to determine boundaries. Good luck and congratulations!