I am 4 weeks pregnant and have already seen a doc about my bleeding...I have very mild cramps but i have been bleeding lightly for a bout 7 days now. The blood has been chaninging from a dark red almost black, to a brownish red color...It keeps going back and fourth in color. Should I be concerned. my Doc said my HCG Level was still going up just very slowly. It was 170 2 days ago and 109 2 days before that...I had blood drawn today but dont have the results yet...Nothing showed up on either one of the 2 ultra sounds i had done becuase its to early. Should I be worrid about my slow HCG levels, or about the bleeding...Has anyone had these problems...My doc s confused because I have no pain, no dizziness or fatigue, no fever or headache and really no cramping...just the bleeding...but my cervix is closed...what do you think?