Punterman, it's not a joking matter. You know what it's
not too late to do? Get tested.
Go here tomorrow, to the Western Sydney Sexual Health Centre.
Level 1, Jeffery House
162 Marsden Street
Parramatta NSW 2150
02 9843 3124
They're open 09:00–16:00.
Google Maps link
Call ahead and make an appointment or just walk in and tell them you're there to get tested, they'll take care of the rest. Think of it as an hour FS for free; that's too good to pass up!
There's no judgement, the staff there are wonderful. Everything is confidential and your name won't be used on samples or in communications (and you're in control of who initiates contact for results and how). All they care about is making sure that you and others are as safe as possible from STIs. They
want to be there and they
want to help; it's not just a job to them.
I'll actually be calling them tomorrow for my the results of my last test.