Pms vs pregnancy. What do you think?

Brittney • Graphic designer turned CNA trying for baby #1.

Period is due in 6 days. These past few days I've had really sore nipples (usually my whole boob gets tender, not now), cotton mouth, bleeding gums, acid reflux with some vomiting, diarrhea, fatigue, and irritability. I know these can be pms symptoms but for me they're all very unusual. What do you guys think? I don't want to get my hopes up, but it's strange.

Edit: add to that list twinges and mild cramps on my right lower abdomen.