should I get a blood test?

Tracy
I have had two early miscarriages in the last 5 months, the most recent being the week of thanksgiving. My doctor told me that if I get another positive pregnancy test to come in that day for a quantitative hcg blood test. This morning I took this and I saw a vvvfl within the timeframe. It's so faint that I'm somewhat doubting myself. I'm hesitant to go in (and pay money) for a blood test if I'm just imagining this. 
Can I get some second opinions please? Does anyone see anything? 
I haven't let myself get excited since this has happened twice before so I'd love your input. Thanks!