Can I deny a cervix check??

At my last appt at 37 weeks they asked if I wanted to be checked and I said no. They said that was fine but at 38 weeks they want to check. I’m totally superstitious because last time I got checked with my first child my water broke 3 days later at only 37 +6. I really am trying to keep baby in for a little longer so I don’t want them to check but since they mentioned last time they want to check at 38 weeks I didn’t know if I could still tell them no?