Fred, please go to the PMI website and read the instructions for the test.
I appeared for the test in February this year. You are not allowed to take any personal possessions, including your own pens, pencils and sheets of paper into the test centre. All material required by you, which includes pencils and sheets of paper, will be provided by the invigilator to you at the test centre.
Best to pay your Prometric Centre a visit in advance and have this and other questions clarified so that you are clear what is and is not allowed into the test centre.