Weird?

Does anyone besides me think that this is weird. Glow says I'm pregnant, and whenever I change it back to trying to concieve and hit save, it says I'm pregnant again. Also, my period ended the 13th, and my fertile week is up. I started experiencing a brownish reddish color when I wipe. Could that be implantation bleeding or no? Been nausea for a couple days now, especially after I eat.