Also my boobs are very sore & looks like they are getting darker & a bit bigger .
wait and see if you miss your period then take a test.
I am having the same issue I had a chemical pregnancy in Sept. And I had my period last month but only two n a half days and my periods due in 6 days but about a week ago my breast started hurting really bad not like my normal period hurt....I'm not quite sure what to do
go see your doctor .....sometimes after you miscarry it can take awhile for the pregnancy hormones to leave your body which can give you a positive test. Since you had very heavy bleeding and clots I'm afraid thats what is happening to you. However we are not doctors and only a doctor can tell you what is going on.