Tell me what y'all think! Please!

Tiffany
So I was 8 days late when what I thought was my period started! First day it was light spotting, went on to a little more on day 2. Day 3 was more of brown old blood.  Never had a flow or enough blood to even fill a whole tampon. Yesterday I had a feeling I should just test. So to my surprise I got faint positives yesterday and today!  
Is this my BFP or is my body playing tricks on me?