Positive line after double check

I have been taking test after test hoping like hell i'm pregnant.... everyone for the last week (since glow said my period was due) has been negative. The my period tracker app said i was due today.... no period.... i took a test early this morning and again this evening and didnt even wait the 3 mins as nothing showed and id lost hope after a week of testing. I just double checked them and the 2 from today now have very faint positives! Has anyone had this happen and been pregnant??? Im so hopeful but then very wary after having 2 miscarriages.... what do you think??