Is this a sign?

Jaclyn
I'm not due to start my period for another 7 days. My ovulation day was on the 14th. Yesterday when I went to the bathroom I noticed some brown discharge in my underwear. And then today when I went to the bathroom there was some pink when I wiped so I thought I was starting my period early and put a pad on. When I went to the bathroom again there was nothing when I wiped but there was brown discharge on my pad. Could this mean I might be pregnant or is it just my period coming early?