Am I miscarring?

Taige
I am 7 weeks. Yesterday had a transvaginal sonogram and last night i started bleeding. Not enough to wear a pad but enough to know it wasn't spotting. I've passed two tiny clots and the blood has lightened to a pink but now my cervical mucus is creamy with reddish purple clumps. I also have light cramping or its in my head i don't know. 
I had a stillborn at 30 weeks 3 months ago so this is my miracle rainbow. 
Is this from the sono? Am I starting to miscarry? I am terrified and my Dr is out today.