Possible D&C today (Friday)

I recently made it to 9wks pregnant & found out this week my baby quit growing at 6w3d. Late Monday night I passed the sac. They will be doing a sono before the appt to see if I still need the procedure. I am hoping I won't need one because I would rather my body do things naturally. Have any of you had the procedure? Do you have any tips? Or any calming advice?