First time mumma

Katrina

So I did 3 test one was a faint line on a cheap test and 2 clear blue test that said 1-2. So my last period was the 30th of october which would make me 7 weeks yesterday, I had my first ultrasound friday and turns out I am still fairly early and bub is only 0.2mm, just curious how far along would that make me ?? I do have a doctors appointment on Wednesday but I am alittle confused and not sure how the weeks work as of yet 😅