Needing some help

So last time I became pregnant I gotten a faint line then I started bleeding and it was pretty heavy. So I figure ok this is a chemical or a false positive and just continue about my day. Then two weeks later I knew something wasn’t right. So I tested and it was a strong positive that came up within seconds.

Now this cycle it’s kinda of the same thing happening again I was late in my period. So I started to bleed today finally after all the wondering but it’s a super light bleeding. So I took a test and I see a super faint line. Has anyone ever experienced these things.