Miscarriage without back pain?

Melody
So I am 6 weeks 2 days and I have been spotting for two days. It has ranged from bright red blood to brown and bright red again. All of it has small clots... My back doesn't hurt but oh my I feel like I'm on my period. My uterus is cramping so bad and it's all I can do to just lay here... My doctor said to wait until Monday because no one can see me unless I go to the ER and she said I shouldn't go there unless I have severe pain and bleeding. 
I am pretty sure I'm having a miscarriage and I will test in the morning... 
Has anyone else experienced a miscarriage like this?
I'm so so incredibly sad. But I had a feeling something was wrong at 11-13 dpo when my test lines were getting lighter... They got darker at 16 dpo and have since got darker...
Any help or advice? This is my first pregnancy...

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