When did you start bleeding with a chemical? I had a faint positive on Wednesday, got darker Thursday and Friday and then yesterday and today it’s faded to very faint. I started spotting last night but it hasn’t picked up at all, still light spotting today. I expected to be bleeding by now since the test is almost negative. Mg hcg was only 15 on Friday, I went today for another draw which I’m expecting to be lower. Should I be concerned if I don’t start bleeding more heavily?