normal?

is it just me or the line has gotten lighter? I am trying not to freak out about little things but this is our first baby after several months of trying. the top picture is from a test I did 2 days ago. bottom is from today. I have no symptoms but being super emotional and minor cramps. I believe I am about 5 weeks. **both of the tests were taken in the afternoon. I know I should have done first morning but only tested when I didn't feel any symptoms or was a emotional wreck**