So I had my period, but the second day in it was heavy, than the rest of the time is was super light/ that brownish blood. Usually my breast are sore for the week before and this time they were sore throughout my period and still are. I've been super moody and irritable, could be stress? But I'm nauseous on and off for short periods of time, and I got heart burn at odd times for the last 3 days.

Chances I could be pregnant?