How long for biopsy results?

So I had my MRI-guided biopsy on Monday and am not doing well waiting for the results. The biopsy came as a result of a follow-up MRI that I had because I had to get a biopsy ten months ago, that originated with nursing problems I was having with my newborn. It was benign. This time the follow-up found something on the other side. However, I'm currently nursing only on that side. There was no mass, only enhancement that didn't match the left side. From the MRI report, it seemed that they weren't aware that I was still nursing. When I talked to the radiologist before the biopsy, I shared my concern with him. He took his initial set of images, came in and told me that he had checked and neither the technologist or the radiologist had known that I was nursing and that at this point it was up to me whether or not I had the biopsy. This was as I was still laying totally still face-down on the table. I chose to go ahead with it for peace of mind, but am now a wreck waiting. Last time, my results were available in under two days, and I'm imagining the worst that I still haven't gotten them yet.

What is the typical time it takes to get back results, either good or bad? And how comforted would you feel that the radiologist was offering to cancel the procedure? I feel like he had to be pretty confident that it was fine, as he would be opening himself up to problems if he was wrong, right?

Thanks in advance for any thoughts you have!