Need help could be pregnant ?????

Erica

I have been cramping since last Saturday the 23rd with slight back pain constipation diarrhea constantly having to go pee every 5 minutes with slight nausea the comes and goes feeling like I have to throw up

Does anyone know what is going on my period is in 2 days and there is a little bit of blood on my underwear could it be my period or could I be pregnant I took a test at 11DPO it was negative any suggestions