New way to look at it?!

Sarah
If I test tomorrow morning at 7DPO, then in another 5/6days at 15DPO and I test again I am either prepared already for another BFN, or will be pleasantly surprised by a BFP. Until a confirmed negative, I act as though I am as a safety precaution! 
I think it's a good idea- knowing how much more disappointed I would be if I waited longer. 
Thoughts? Comments?