nPEP is typically reserved for situations where there is a confirmed + partner, and a high risk. nPEP is not something to take lightly, it is very expensive, comes with NASTY side effects and significant risks of its own.
Getting tested today will only tell you your baseline status, it's useless in terms of your risk.
You don't require a whole bunch of tests. If you are anxious, have a DUO at 4 weeks, and follow up with a standard antibody at 3 months.
You could also test WITH this partner if he his willing. His status right now won't be confirmative, but it sure will be reassuring.
From now on...INSIST on condoms for all penetrative sex. NEVER take someone's "word" either.
From Dr Garcia HIV specialist doctor--here at freedomhealth we consider an RNA by PCR at around 7 days post-exposure 99% & would only suggest a follow up DUO test at 4 weeks if the exposure was high risk.
Getting any test done right now won't tell you anything so don't waste your money. Yes you have put yourself at risk because you had unprotected anal sex. If you really feel that he was a high risk partner, you can go to your local clinic or emergency room and start PEP. PEP has to be started within 72 hours of ;possible exposure. If yuo don't want to do that, go for the HIV combo test or the p24 antigen test at 2-3 weeks and that will give you a good indication of your status. We all make mistakes, but please learn from this one and use condoms at all times with any type of sexual encounter. Best of luck to you.