Faintest positive? 12 dpo

Amanda • I am 23, engaged to be married, our first is a beautiful 5 y/o angel in heaven, We lost her April 2015, miscarried our second October 2014, we are waiting for our rainbow after the storm. (Ttc 2yrs)
I am currently 12 dpo and we see the faintest line? Anyone else see it? I will be testing again in a few days, period is due in 4 days!