bleeding in early pregnancy?

okay guys I need some opinions and input. I have had multiple faint positives so I went to the Dr and they drew blood, my level came back at a 20 so she said it cpuld go either way, could be a chemicalnor just really early. the day they drew blood was the day AF was due and I normally have 23 to 25 day cycles.yesterday I started spotting and thought oh no, its just enough for me to wear a panty liner or thin pad most of the day and there when I wipe but not a lot. of isn't bright red either, it started as a light pink color now it is more of an orangish color. do y'all think,it could be chemical or is this normal?