@Siewli don't over think things at this stage.
I know, you are reading this thinking 'Oh, thanks for that helpful hint'
You won't know your staging until you have all your tests. Even then, unless you are metastatic, staging is not a particularly helpful tool.
Whatever is going on has been brewing for a while. A couple of more weeks can feel like an eternity once you know something is wrong, but testing and screening takes time--regardless of who does it. Two or three week to get a reasonable idea of your diagnosis is quite speedy. Getting a treatment plan can take considerably longer.
The main thing is to get into the system. Don't be distracted by timelines for other people's disease; what happened to someone else's wife/sister/friend/hubby is irrelevant. Your particular version of this shitty disease needs to be fully understood before your team can figure out the best way forward for you. It takes time.
Mxx