Is Early Red Watery Bleeding With Fatigue A Sign Of An Irregular Period Or Pregnancy?

I have been experiencing this light-dark brown discharge for two days and now today going on days 3 it’s this red watery blood like period. I’m having little to no cramping and extremely fatigued and this stuff is happening almost 5 days before my period actually is scheduled to start. I’m not sure if I’m facing some period out of wack or pregnancy