Really confused and worried...

I had a test two weeks ago, which me and my mum really thought is a faint positive, however, all the tests after that one were negative. I have attached that test picture here, let me know ur opinion...I am currently 27 days late, had a brown discharge yesterday, no period after that. No symptoms...sorry if this isn’t the place to ask but thought maybe you will have any idea as I’m going crazy...