HELP ME FIGURE THIS OUT

I know no one really can tell for sure me but I am curious.

I had a miscarriage November 13th. I had blood work and an ultrasound to make sure i passed everything and my levels were back to 0.

I think I ovulated December 5th. Got a positive pregnancy test on December 13th. Never got a cycle after my miscarriage. How far along do you think I am?

My first appointment is January 4th.