Short answer - no.
I doubt the test is meaningful down to a difference of 0.01, there will be slight variability day to day in both your body and the test protocol which means there is some uncertainty. All your readings so far could be the same 0.04 +/- 0.01. Even if there is a further small rise in 6 months, it wouldn't be a sign to take immediate action.
For what it is worth, the hospital where I am a patient doesn't even record PSA levels less than 0.05 because they don't think that meaningful.