Hi I have 3 questions in one that has me scared.

So a few months ago I was in a bad place mentally for being single for a long time (Im straight), got an offer to hook up from someone who is trans on a hookup site. Not thinking, I didn’t use a condom and I had anal sex but stopped as I didn’t feel good about it and stopped. My penis went into her. I am uncircumcised, Instantly feel terrible about this the whole time leaving her place. In person she said she was all clear. I contacted her on the page and asked she said she was clean was tested 3 weeks before and was all clear. This still didn’t help put my mind at ease. I spent weeks in a really bad depressive down spiral, which iv come out of a little since but still feeling down about it. I found biosure and ordered 2 tests, I took the first test 8 weeks after possible exposure and got a negative result, I took my second test at 13 weeks about 95 days and it was also negative. but I still am overthinking about it. I haven’t been with anyone else since then. I sent another message during a break down asking again if she was clean in the 3 months since, and she replied that she tested the first week of July and was clear.

what concerns me is some of the following,

1 – I am extremely overweight close to 400lbs at this stage, I know im working on it, but I am worried that this would effect my testing, but couldn’t find anything online about it.

2 – around 2014 so around 5 years ago I was working in medicine and had a hepatitis B vaccine as was required, and was worried having this would effect my result as I seen another post on here where the answer said a HIV vaccine would effect

3 – with the above information is my results at 13 weeks conclusive or should I retest at the 6 months mark (its currently 5 months since my possible exposure)