I had protected sex with an escort seven weeks ago. Everything went normally except for the final seconds around ejaculating, and this really concerned me: Basically when the girl moved her body from me (cowgirl sex), I realized that the semen/cum was not in the reservoir. However, my penis head was indeed covered, and it doesn't look abnormal other than no semen in the reservoir, at least from my angle. I couldn't fully take a look at it cuz I was lying on the bed. Then, when the girl removed the condom and held the base of it, I caught a glimpse of it, and it seemed like the semen/cum went back to the condom tip. I also saw both transparent and milky fluid outside the condom. I don't know if that's her juice or mine.
So, here are my questions:
1. Is there a potential problem (rupture/small tear/etc) with this condom?
2. Is there a potential HIV transmission risk and do I need to get check now?
3. Not HIV specific, but why's my cum/semen not in the reservoir after ejaculating?
Thank you so much!!