Confusion with pregnancy test

I’ve posted this a few hours ago. But just wondering if anyone has been through something similar.

I miscarried 8.5 weeks ago. Got nothing but BFN a few weeks before this. Had what I thought was a short light period last Wednesday. Lasted Wednesday - Saturday but barely filled a pad a day which I thought was odd. Now I have a pregnancy test with a vvvvfl? But I’m only CD10?!?! Almost impossible?

Can anyone else shed some light? Xx