Lighter test?

Tay

Has anyone ever tested after 7 weeks and gotten a lighter test? I last tested at 5 weeks decided to test this morning for the hell of it (don’t have an appointment until I’m 8 weeks next Friday) and it was a little lighter than my 5 weeks test which was a dye stealer. Anyone else experienced this? I still have my same symptoms of morning sickness, sensitivity to smells, etc.