Do you test before your period is due? Always even though I saty Iwon't!!! I got my BFP at 10 DPO

Do you test before the HPT says you should? No - but I think that they're generally a bit optimistic.

Are you a serial tester? ie do you do one very month? and do them repeatedly? yes. When I was TTC I would say every month that I would wait until after AF was due before I even thought about doinga POAS but every month at around 10DPO a pee stick would find its way into the shopping. Its a good thing it didn't take us too long to get a BFP or I would have sent us broke with my pee stick addiction.
I'm pretty sure that when we moved I packed my sticks with BFPs but I think BJ found them and threew them out.