Tests getting lighter at 5weeks 3days?

K
Hi ladies I'm 5 weeks and 3 days today and I just took a test this evening because I have been having very light spotting. The test on top is what I have been getting for the past couple of days. And the test line has been the same as the control line. But tonight the bottom test is looking lighter. Is this okay? I have already had 2 early miscarriages. My first levels were 73 and my next levels were 281 so they more than doubled. But the last time I got my blood drawed was 5 days ago. What do you all think?