Personally I wouldn't. Pot in regular amounts (as in smoking regularly and consistently) is known to affect men's sexual function. I don't know the mechanism, but given that the prostate is important to sexual function, I personally would err on the side of caution and not do pot at least until you've got all the test results back and you've been able to discuss the next steps with your doctor.

It might be something to revisit later, but until you've got all the test results and such back I would take a hiatus.