Sorry to hear you have to have a biopsy, but hopefully it is benign. 80% of lumps biopsied are benign so those are good odds. I think the waiting is the worst part of all this. My results were back in 2 days, so I hope you don't have to wait weeks.
Keep up the great attitude and lets us know how things go. We are here for you if you need us!
Hugs,
Gail