Spotting/Bleeding

Took a test on Sunday and got a faint bfp. Took the digital like 20min later and got another bfp. I was still just wanting to certain and took another test later that day and got what looked like a a bfn but thought it might have been bc I drank so much water. I’ve taken four more and only one has shown a faint bfp (cheaper store brand). Now I am having some spotting... trying to figure out if this was a chemical pregnancy or if this is normal and just still early?