Missed period, 1 positive test and a lot negative

So my period was due the 14th and I am ALWAYS regular and like clockwork, I had extremely light spotting on the 8th. AF never showed and then the 18-20 I had extremely light spotting again and could only see if I wiped which was light pink.

This morning I had some very light brown spotting and now nothing.

5 days ago on the 23rd I got a light positive right away and I've bought several other tests and all varying in brands and all are negative.

Think I'm pregnant or just a crazy missed period? I'd be about 6 weeks so shouldn't I be getting a positive if I was?

I've taken them with my first morning pee,middle of day and at night.