Discharge

Has anyone experienced this discharge? It's Odor-less and at first only appeared when I wiped. Today it was in my underwear (just a little) it stopped for a day or two and started back up today. I am also cramping and have very sore breasts. My expected period is around the 1st but my cycles are a bit irregular. But I know it's too early to test. What could it be? Any now preggo women experience this after convincing? Sorry if the pic is tmi ?