How long after implantation did you get a VfL!

Please only answer if you have experienced implantation Symptoms!

Figuring out when I should test. I had sharp pain and some spotting today at 7dpo. (Tracked with opk). It's way to early for this to be period related bleeding or pain. I always get cramps the day before period. But these pains felt nothing like period cramps. I don't think I ever felt anything like it

Anyway. Please don't tell me implantation pains or bleeding are a myth. If you believe that, that's fine. But I don't believe that and you're not gonna change my mind. You just gonna be a snotty know-it-all.