PMS symptoms stopped, BFN yesterday.

Hi all,

So up until today I have had my normal PMS symptoms-cramping, bloating, dizziness, fatigue. I tested up until yesterday and got all BFN. Today all of a sudden I have minor to none of my PMS symptoms. It's CD 28, so I usually would have had my period by now. Should I test again or wait it out? Could I be pregnant even with all the BFNs and symptoms?