Thank you for your inquiry. From what we gather from the question, you were asking about the risk of transmission from protected sex with the presence of superficial cuts on your penis. From the information given, this scenario is determined to be Low Risk (evidence of transmission occurs through these activities when certain conditions are met).
It was extremely responsible of you to use a condom. However, protected sex still represents a Low Risk due to the possibility of improper use or breakage of the condom. The scenario mentioned above does meet the three components of the transmission equation. It satisfies the equation under the possibility that there was slippage, breakage, or improper use of the condom. This would allow HIV positive fluid direct access to the bloodstream through the urethra. The small cuts that you explained would not be a large risk factor for HIV transmission, as by your explanation they would not be large enough to provide direct access to your bloodstream.
As for the question about unprotected oral sex, the scenario is determined to be Negligible Risk (There is no evidence or no documented cases of transmission. However, there is a theoretical possibility of transmission under certain extenuating circumstances). This is because, theoretically, there is a possibility of HIV transmission. The urethra allows for direct access to the bloodstream, therefore, receiving oral sex with or without superficial scratches on your penis presents a Negligible Risk.
Recommendation: Refer to a health care provider for HIV testing.
AIDS Vancouver Helpline/Online, Rashell
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