UK - How to work out how far along I am?

Im so confused, so I phoned my Drs to be booked in to confirm my pregnancy before a referral and they wanted to know how far along I am. On the Flo app which I use, it says Im 5 weeks 6 days, but my periods are not regular due to PCOS. So I worked it out from when I THINK I ovulated, I got a possibly positive ovulation test on the 10th, so lets say ovulation was the 11th of October thatd put me at 4 weeks today which Ive set my app too.

But now Im confused on what to tell my Dr when I see her on the 5th. Below are some photos.

ovulation tests from the 10th Oct:

My Flo App set for periods:

Flo app set for pregnancy:

On the 23rd I got a positive digital

And this is todays FRER

My glow app and others based on me saying my period is an average of 33 days etc all say Im four weeks like in the photo below. Couldnt take a photo of the glow app screen as Im typing lol

Can somebody help me work it out xx