I Had Fiducial Implants Placed In My Prostate This Past

I had fiducial implants placed in my prostate this past Wednesday in preparation for Cyberknife therapy in June. I meant to clarify with my doctor one thing -- I believe I was told to abstain from sexual activity for a week, but then got the impression that I should wait until after CT/MRI scans to create the mold. That appointment is a week from Monday. Which is it? Or should I just call my physician Monday and ask?