Could I be ?

So I'm just wondering if this sounds more like pms or pregnancy symptoms? My period is late by two days but I keep getting negatives I haven't tested today though. A couple days ago I was so sick at my stomach I threw up water. I have never had that happen before. I have brown discharge on my undies. But last night. I had slight pinching like cramps on my left side I was so sad I thought I was going to start but this morning nothing.. Just wondering what this sounds like?