No, this does not change my advice or assessment.
Reuse of acondoms is not a good idea however. Used condoms are more likely to break. Condoms are designed to be used just a single time. EWH
Thank you for the quick reply. To answer your question, the condom that she used to give me protective oral sex was the same one where we had vaginal intercourse for a minute. Does this change your risk assessment? My main concern is the vaginal fluid from outside the condom was placed on the head of my penis. Then the condom was reversed and placed correctly on my penis (with presumably some vaginal fluid now on my head / inside the condom) when she then performed protected oral sex again. I'm worried the pressure of the protected oral sex pushed the small amount of vaginal fluid into my urethra.
Welcome to the Forum. I'll try to help. Before I do however, let me clarify one thing. Did you use the condom twice or when she realized her mistake did you then switch condoms entirely?
As far as other elements of your questions, the short answer is that I would not recommend PEP for you following this encounter, For starters, you do not know that your partner had HIV and, statistically it is unlikely that she did. Fewer than 1 in 10,000 American women have HIV. Further, the activities you describe were low risk for HIV transmission, even if she was infected. There is no known HIV risk associated with receipt of masturbation or even unprotected oral sex and the risk for acquiring HIV when a condom is used correctly throughout sex is almost immeasurably low. There is no risk for HIV or other STIs from the fact that the used condom may have touched the tip of your penis.
Finally, you mention that this occurred "a couple of nights ago". If it was more than 72 hours ago, there is no role for PEP either. PEP is not effective for exposures which occurred more than 72 hours previously.
I hope my comments are helpful. I certainly see no reason to use PEP in this situation. If I were you I would not worry at all about the exposure you describe and doubt that there is even a medical reason for testing. EWH