Hi, thank you for your response it is highly appreciated. My worrying began as I was drunk and had to ask wether she was protected. She has assured me she did and claims to never do dirty sex and assured me she wore one. I know I maybe being irrational but this is crippling me. How can I move past this fear and get my life back? Also if after 4 weeks I have no symptoms do you think I should purchase a home test kit. I just want to be okay and have peace of mind after an act so out of character for me.
Oral sex, protected or unprotected, is not a risk for HIV.
You had protected anal sex, and the key word is "protected." You did not have a risk of contracting HIV from that encounter.
HIV risks in adults are:
Unprotected, penetrative anal or vaginal sex
Sharing IV drug works with other IV drug users
If you do neither of those activities, you will not have to worry about HIV.