Two Days Before My Period I Had A Small Flow

Two days before my period I had a small flow it was orange and when I wiped myself I notice that there was something that looked like egg whites mixed with a yellow color .I been having real bad pain in my pelvic area and lower back. I started my period today and I still have the pain with a little burning in my stomach and my period seems like it's mixed with oil cause the water is clear and the blood just floats and spread out and it looked red, orange and yellow . What does that means ?