Spotting at 6 weeks pregnant?

Hey ladies 👋🏻

So last year at 19 weeks pregnant I lost my twins. I am currently six weeks pregnant and everything has been going perfectly, I’ve had regular blood tests and my HCG levels are going up as expected… However yesterday morning I woke up with some light pink spotting when I wiped just a tiny bit. The next time I went to the bathroom there was brown spotting, I had it all day yesterday, and I still have it. Not very much but I’ve had to put a liner on to stop it going on my undies. I have been to the doctor about it, I had a blood test and I even had an early scan and everything is looking fine at the moment(couldn’t see much in the scan just a little jelly bean).

I am still worried though just because of what I went through last year. Did anyone else get spotting at this stage in pregnancy? How long did it last for? Did you go on to have a successful pregnancy?

ALSO I track my period and ovulation so going by my dates I am 6 weeks 2 days.. my scan showed 5 weeks 4 days.. is this normal for the scan to show earlier than you thought?

SORRY IF ITS TMI BUT THIS IS THE SPOTTING IVE HAD. Opinions please!

Note I have had LESS spotting since taking these pics.