I need opinions please!!

I've had 10 positive tests and my blood registered at 10hcg yesterday. BUT I started bleeding a lot (only when I wipe) this morning around 7am. (mucus blood) The doctor said I might be miscarrying but doesn't seem to concerned about it and told me to come in Monday for another blood work. My mom is telling me to go to the ER.
Here are to test are the last few days. If I was having a miscarriage wouldn't the tests be getting lighter not darker??