For either of the test to yield a correct result you would have to wait for 28 days from the last dose of your PrEP.
Hence, if you wish to take a PCR RNA, you will have to do it at 28 days + 7-14 days, 11 days being optimum, as recommended by most experts.
Or, 28 days + 28 days for a IV/V Generation of AG/AB test.
why dont you get a PCR Test window period is 7-14 days
or wait for 30-42 days for 4 th gen tests
Any test that you would decide to take has to be after you pause or stop your PrEP medication. Chances of acquiring HIV is low. A 28 days IV HIV test would be an excellent idea, backing it up with a 90 days antibody test is recommended, a 28 days IV generation result changing ahead is improbable.
Please follow your doctor's advice. PrEP prevent most infections, and the fact that your partner is also on PrEP makes HIV transmission extraordinarily unlikely. I'm not aware of any test that is conclusive a t 7 days post-exposure, as antigen formation and subsequent infection usually peak around day 10. However, you're looking at day 13, and I'm assuming they're using an RNA PCR test, which would detect the presence of the virus.
Personally, I'd just wait until your 3-month test, due to the extremely low-risk nature of your encounter, but to each his own.