Sounds like plan for now. I did that once on my second biopsy. I had my first biopsy in 2000, it was negative. Then in 2004 my PSA was higher. The second doctor agreed with the first that my PSA warranted a biopsy. It was negative. But it was a 6 core biopsy. I am convinced now that if it was a 12 core biopsy, they would have found the cancer. My surgeon said that with the size of my tumor, I must have had PCa for the last 10 years.
My PSA was 18.5 in 2012, yours is 18. There is a reason your PSA is 18. You need to find out why? If your next uro suggest another biopsy, you need to listen to him/her and most of us here.
We don't want you to have PCa, we just don't want you to be stubborn and ignore the warnings signs you have.
Bill from Florida