Hi @MelV83
The 'wait' can vary from town to town, city to city. In an ideal world, it should happen within a couple of weeks .... but in my own case, my lump was discovered in early Oct and, and being regional - the biopsy wasn't done til after Boxing Day - so it was over a 2 months wait for me just for the biopsy (I got thru Xmas by telling myself it was only a cyst - which is what I had been told when I was in my 20s when I first presented with 'lumpy breasts'.) Then I got my BC diagnosis on Jan 5th - and I was lucky enough to have my Sentinel Node test & surgery 10 days later, on the surgeon's first & 2nd day back from Xmas holidays.
What 'diagnostic treatment' have you had so far? Usually it would be a mammogram, followed by an ultrasound which would identify the spot for a biopsy (which then identifies the type of cancer & possibly the stage - tho this is usually all confirmed with the pathology after surgery.)
It sounds like you've already had a biopsy done as you've indicated that the lymph nodes are involved already - did they biopsy the lump under your arm as well as your breast or at this stage, an assumption, due to the lump under the arm? xx That is also usually determined wth a Sentinel Node test (to identify which nodes the lymph drains to) & surgery (with pathology on actual nodes removed during surgery to identify if positive to BC.)
Is this next appointment to see the Surgeon? If so, I hope you can get in for surgery before Xmas, as it gets incredibly busy from now til Xmas & most surgeons/specialists go on holidays from (this year) probably Dec 20th thru to the middle of Jan (with only emergency surgeons/specialists on call at hospitals.)
Take plenty deep breaths ... once again, take each day as it comes, each hour if need be ... as there will always be some things that are outside of your control ... In the mean time, keep your mind & body busy! Try & get out & keep doing things you love doing, with the kids too .... try & keep things as normal as you can for as long as you can xx Take care