Gr8ful-jen It sounds like you've been let down by the GP practice. It's great (though it should not be necessary) that you and your husband are chasing things up.
In my own experience I've had some hiccups with missing communication so at times it has taken effort to keep the ball rolling. And I'm thankful that when they've realised they've dropped the ball, the various people have quickly made the next steps happen.
Having said that, I have been reassured that a week or two delay in my own case was not going to make any difference. For instance my second surgery was delayed a few weeks because the report wasn't detailed enough for the team to decide what to do.... and then my surgeon had a holiday. That then caused my radiation to be delayed a few weeks because we fell into the Christmas period. While it was unsettling at the time, I put my trust in the medical team and I think the slightly longer gaps helped me heal a bit more in between each step.
This may be a bit too heavy reading at this time but the Australian Government and Cancer Council have a document called: Optimal Care Pathway for People With Breast Cancer
On Page 8 of the PDF (labelled page 2 on the lower left of the page) with the heading "Step 2: Presentation, initial investigations and referral" it says "Ideally, the surgeon should see the patient with proven or suspected cancer within 2 weeks of diagnosis."
The next page goes into optimal timeframes for surgery and/or other treatment. e.g. within 5 weeks if Chemotherapy isn't provided before surgery.
While the timeframes they specify are optimal, each situation is individual. Some people will progress through faster, and others slower.
I hope that the surgeon provides an appointment for you soon so that you get clarity on timeframes for the next steps.