pregnant or not???

Elizabeth
So My period usually last about 3-4 days tomorrow will be day 4 and I have no signs of my period coming I'm never really late. I've been to the dr for blood testing over back and abdominal pain but nothing came back that I was pregnant... I'm not sure if I should wait and take a pregnancy test or not. My husband says I'm not pregnant but I think I am. My boobs started hurting really bad today and I've had some cramping... I want to take one in the morning but I'm so scared 😅