How far along would I be?

Tayla👼🏼👼🏼👶🏼👼🏼

Hey all,

After trying for over a year to fall pregnant with our first girl (now 2) I am blown away that I got a positive early pregnancy test.

I got my mirena our on 20/1 (circled) I then appeared to have a period but after 25/1 it was spotting. Yellow highlights is when we had sex. On the 18/2 I got a very clear positive at 10am I then got another very clear positive at 3pm with another brand test.

Just not sure what to track as my last period.