different period?

Alright, so I was suppose to start my period three days ago, I don't know of I did start or what's going on, but I started just spitting three days ago, first day, went from pink to brown, cramping, yesterday, a pinkish redish color, like I've never ever had a period like this, I don't think it's my period because 1. no blood clots, and 2. it's just spitting, like not even enough to fill a tampon over night, should I see a doctor? It's just constant EWCM mixed with blood, help?