Clear blue testing

Hey everyone, don’t know if anyone would be able to help or not but I just found out I’m pregnant on Thursday. I got a 1-2 week on clear blue test and on Sunday I got 2-3. My last day of my last period was 3rd December… Going by the tests how many weeks would you think I would be and are they correct ? I guess what I’m asking is has everyone that’s used the clear blue been accurate?? also when could I get my 3+? I suffered a miscarry in October last year so feeling very anxious as I just want everything to be ok!