Is A 4th Generation HIV Test Result Conclusive At 21 Days Post Exposure?

Question:
I saw a CSW She male escort 3 weeks ago. She only tops. So she asked me to lay on my stomach. I did, then I turned my head and said only Condom protected. She showed me condom and said Yes, she not like other girls. Then about 1-2 minutes, she asked to rub her penis against my anus to get harder without condom. I said yes but no penetration. She did then 2-3 minutes later, she put the condom on. She tried for several minutes with no luck. Then she changed condoms and tired again. No luck for several minutes then finally she penetrated me for a couple of minutes. Then, she got off of me and came in front of the bed so I was total view of her. I looked at her penis and I saw no condom on her. She saw my facial expression and showed me the condom in her hand. She said she took it off because she has cum in it. I could not see that or tell if the condom was intact. She ensured me it was covered whole time and she getting married soon and does not have any STD's. I know she did have condom on but I am not sure 100 percent at end because I saw her without a condom when she was done. I kept checking during her attempts like turning around and checking. I checked 4-5 times and I saw a condom. I would assume she uses protection for her protractions too but my mind playing tricks with me. I keep thinking it was so hard for her to penetrate me with a condom, maybe she took it off for better sensation and tricked me. I am scheduled for a HIV test tomorrow 4th Generation. It will be 21 days. It will capture 95-97 percent of new infections. I also read 2 weeks can capture 100 percent. Reading too much online. I am so stressed..

Yesterday at 21 days, I took 4th Generation HIV test. Received results today and it was negative. Questions, I read this test looks for P24 and antibody. With three weeks only, this test needs to find P24. I read 2-3 weeks is conclusive and I also read it must be 4 weeks (28) days. ALso I read I am about 95-97 percent conclusive so there would be 3-4 percent chances of my status of change. Should I test again? If so when, 4 weeks, 6 weeks or 12 weeks?