Thank you for your inquiry. From what we gather from the question, you were asking about the risk of HIV transmission from someone you have been in a monogamous sexual relationship with for two years.
Regardless of your trust in the person, your health should always comes first. That is why it is typically recommended to access HIV and other STI testing from a healthcare provider at least once a year if you are sexually active and do not know the HIV status of your partner (1). Home tests are an okay way to identify your HIV status, but they are prone to error. A test from a clinic will provide you with more conclusive results.
Recommendation: Refer to a health care provider for regular HIV and STI testing
AIDS Vancouver Helpline/Online, Marie
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1. Getting Tested