Bleeding after positive? Still hope?

a few days after my faint positive test which was pretty early, I got my period except it was only regular for one day and very light the whole time(which is very unusual) . I choked it up to wrong tests, didn't wanna face anything else, but I have been very fatigued this week. I would be around 4 weeks and 2 days. gonna buy a test one more time tonight, just out of hope. anyone else bleed and was still pregnant?