Can you deny a Pap?

I’ll be 18’weeks Monday when I have my check up with my OB.

She didn’t wanna do a pap all my other appointments due to being high risk for miscarriage she kept saying don’t worry about it.

Last appointment she mentioned maybe doing it this appointment and being 18’weeks I’d rather just wait until after birth. I don’t wanna mess with my cervix, paps have Been normal every time.