Normal or not?

I am supposed to start my period between yesterday and tomorrow, the apps are usually off a few days, different ones telling me different things. I thought I started today but when I went to the bathroom it was just a lot of almost milky colored very watery discharge. Is this normal or is there a chance that I am pregnant? I took a test a few days back but it wasn't one of the early result ones, and wasnt really supposed to be used before your missed period.