Thank you both, Lyn and Andy, for your answers. Clear then.
True that I cannot say when I had sex or not before my past PSA tests ...
Well, in fact anxiety is getting bigger with the tests, particularly now since April this year as PSA has slowly going up.
I had RP on April 2018 and the PSA marks have been quite stable around 0.03 for 2 years (I must say anyway that for the first 9 months the machine could not read below 0.04 … so I never knew what was in fact). On April 2020 the test came 0.05. 3 months later 0.06 and last Monday (further 2 months apart from last time) 0.08. I have a doctor appointment for next week.
I fear I am in need of further treatment and this post gave me some hope about staying well untreated for longer J