Need opinions???

I started bleeding lightly today , my period was due in 2 days .. I’m assuming I have my period, it just hasn’t turned heavy yet. I noticed when I went pee there was a blob, circle like , whitish fleshy in color??? I have no idea what this could be, never has happened to me before. maybe the size of a nickel. I didn’t take a pic or fish it out of the toilet, but I am concerned