Slightly lighter test this morning

I am 5 weeks 3 days, and I've been testing every other day to make sure my lines are getting darker. I've had 2 MC before, both before 6 weeks, so I'm constantly on edge because of my history. On Tuesday morning at 6 am, I tested and the test line was darker than control. This morning I had to pee at 3 am and couldn't wait any longer, so I went ahead and tested. Still got a dark line, but not as dark as Tuesday morning. I know my urine was more diluted this morning since it was much lighter than normal. But, my anxious mind is still freaking out. I have an appointment for bloodwork today anyway, but not until this afternoon. I'm going to get nothing done at work until then because I'm so worried. Has anyone else had this problem with testing with diluted urine in the middle of the night instead of the next morning? Did everything turn out fine? I know that I need to stop testing because I'm driving myself crazy.