That is completely down to you.
I would say after three tests took at the right time you have a conclusive test. However the oraquick test is not the "gold standard" as you clearly know.
I personally would be happy with 3 rapid tests done (depending on what "risks" I have taken) but the blood tests are easy to do and will give you closure then go for it.
To put a personal spin on it - if you showed me your three rapid oraquick test results as negative I would have sex with you without any worries for my own health.