Because you were using a condom with this partner and from what you have written, the condom did not break; it is very unlikely that you would have been infected with HIV even if this person were positive. Condoms, when used properly, are a very effective way of reducing the passing of HIV.
From what I understand you have been taking cow colostrum but not P.E.P. so this should have no effect on your HIV test results. In British Columbia it would be recommended that you have a follow up test at 3 months after a risk but a negative test at 6 weeks is a pretty good indication that you do not have HIV.
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