very thin faint line, am i pregnant ?

My peak fertility date was October 28th 2023 (based on clear blue test) my period length has varied between 30 to 40 days. Today I took the Clearblue 6 day early test (in the evening) which says it can detect pregnant upto 6 days in advance. I found a very thin line that's barely visible and had to move the test at a particular angle to see it, any thoughts ? Am I pregnant ?