Hi @FreckledGalaxy,
Welcome to the forum. You will find a wealth of knowledge and warmth on here. If you're lucky things move quick. Less time to worry yourself into a tizz.
I had my surgery pretty much a month from diagnosis. I could have had it within the week but I wanted a lumpectomy so we had to chase around and find the primary tumour as it was being a pain in the butt to locate.
It's a hard choice to make for some. Mine was dead easy, I just wanted to avoid a mastectomy if at all possible, no questions, no doubts.
Some people choose the other, some choose to remove both and reconstruct or not. It just depends on how you feel about it.
Keep asking questions. There will always be someone on here that has been down the same or similar path to give you some insight.
xoxoxo