Very small Subchorionic bleed???

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Hi ladies, mom's and mommies to be! I will try to make this post as short as possible! So, I am 5w5d pregnant! This is my second pregnancy, the first one ended in a miscarriage at 10w in October 16'!
Anyway, I got pregnant again and I was soooo happy! We barely told people, we did just to some close friends and parents! 
We currently live for a few months in a small town in New Mexico! I worked lately A LOT, probably 12-14 hours a day! Today at work I had a very slight spotting (light brown) and a little cramping! I knew that these symptoms are very common but I got so so scared because we lost our first baby! 
I told my husband and we went to the ER! 
Did an ultrasound we saw our baby, very very tiny though but so emotional! Took blood tests and my HCG levels were 17.000! High from my understanding!
The Doctor that attended me was so cruel and cold, she called my husband as being my "bodyguard"! She wasn't at all kind or at least to give me a smile! :( 
So after the ultrasound she came back and she said that it's a small bleeding on placenta (subchorionic bleed) and she mentioned miscarriage! 
I was devastated! Of course I read a lot about it when we got home and it's VERY COMMON especially first trimester! Many women had it and had healthy babies! 
I have to stay in bed and rest for a few days and hydrate very well! Sunday I have to repeat the blood test! 
Has any of you ladies had this? I feel like I am dying and I am broken down! 😰😰😰😭